Fundamentally, based on the wording of the problem, I believe that the answer is [(503)/(100,000)]. Other answerers appear to have considered that the fundamental answer is instead [(500)/(300,000)]. Neither of these expressions reduces to 0.00375, which was the last answer I found. Perhaps this should be regarded as a lesson in why it is preferable to write numbers in digits and mathematical expressions only!
0.00375
57.00374
Five hundred three and one hundred two thousandths
Three hundred thirty-seven thousandths is .337
Three-hundred,and five-thousandths. 300.005
600.003
0.00375
200,000.003
It is a decimal number: 0.304
57.00374
The answer is for sure 2,309.405
Five hundred three and one hundred two thousandths
Three hundred seven thousandths = 0.307
Fifteen and three hundred thousandths
Three hundred twenty-one hundred-thousandths.
Three hundred thirty-seven thousandths is .337
Three-hundred,and five-thousandths. 300.005