The letters A, B, C, D, E, and F represent digits and ABC,DEF represents a positive six-digit integer. What is the number ABC,DEF if 4(ABC,DEF) = 9(DEF,ABC)?
ABC,DEF = 165,414.
ABC,DEF ==692,307
692,307 x 4 ==2,769,228
307,692 x 9 ==2,769,228