Numbers you may know...but probably not

Apologies, that was 44’40" or fight

No, that was 54-40 or fight. If it were 44-40 everybody north of Pennsylvania would be Canadian.

1**.732 is, but the number is 1,**732, 1 comma 732, one thousand seven hundred thirty two, one more than 1731, being the number directly preceding 1733. Sorry if that was unclear in the OP. Also, I’ve found that it is the birthyear of George Washington. If that’s the correct answer, I don’t know.

1732- year george washington was born
1728- year captain cook was born

  1. 4,840 = square yards per an acre
  2. 640 = acres per square mile
  3. 1,732 = ??
  4. 2.54 = centimeters per inch to 2 decimals. e has been suggested but e = 2.718281828 to 9 decimals
  5. .3010 = log10(2)
  6. 1.6 ??=?? phi = golden ratio = 1.618 to 3 decimals. To 3 decimals 1 mile = 1.609 kilometers
  7. 1,728 = inches per cubic foot
  8. 62 1/2 (aka 62.5) Well, 1 ounce avoirdupois = 437.5 grains, so 1/7 oz = 62.5 grains, but I can’t believe this is the answer.