A 2.552-g sample containing both Fe and V was dissolved under conditions that converted the elements to Fe(III) and V(V). The solution was diluted to 500.0 mL, and a 50.00-mL aliquot was passed through a Walden reductor and titrated with 17.79 mL of 0.1000 M Ce⁴⁺. A second 50.00-mL aliquot was passed through a Jones redactor and required 44.34 mL of the same Ce⁴⁺ solution to reach an end point. Calculate the percentage of Fe₂O₃ and V₂O₅ in the sample.