U.S. foreclosure rates grew by 55 percent in July, according to RealtyTrac, a California-based housing research center. Nationwide, more than 272,000 homes received at least one foreclosure-related notice in July, up 55 percent from about 175,000 in the same month last year and up 8 percent from June, RealtyTrac Inc. said. That means one in every 464 U.S. households received a foreclosure filing last month. That means one in every 464 U.S. households received a foreclosure filing in July, the firm said. Bank repossessions (REOs) rose 184 percent year-over-year. Default notices were up 53 percent, and auction notices rose 11 percent. “The sharp rise in REOs, combined with slow sales, has resulted in a bloated inventory of bank-owned properties for sale,” James Saccacio, chief executive of Irvine, California-based RealtyTrac, said in a statement.