In the United States, a bushel of wheat costs 9 U.S. dollars. In Russia, a bushel of wheat costs 400 Russian rubles. The exchange rate is 33 rubles per dollar. The real exchange rate is: 1.347 dollars per ruble. 1.347 Russian wheat per U.S. wheat. 0.7425 rubles per dollar. 0.7425 Russian wheat per U.S. wheat