I am having problems with this paraghaph. This is my try, but I am not sure at all. it seems like there were something missing in the English version, such as a verb or sth.
The group's research found that the average first-time buyer home cost 3.4 times average earnings at the end of last year, double the ratio of 1.72 in 1997.
El estudio del grupo reveló que el costo promedio para el comprador de vivienda primerizo costaba 3.4 veces su ingresos promedio a fines del año pasado, duplicando el ratio de 1.72 en 1997.
Thanks a lot as always. DIEGO