A book sold 41,300 copies in its first month of release. Suppose this represents 9.9% of the number of copies have been sold to date? Round your answer to the nearest whole number.
Let x be the number of copies that have been sold to date.
The percentage of copies sold in the first month is 0.099 * x = 41300.
So, x = 41300 / 0.099 = 417171.717... ≈ <<41300/0.099=417171.71715789895>>417,172. Answer: \boxed{417172}.