Missouri (USA) is 546 times larger than Greensboro, North Carolina.
Missouri is a U.S. state located in the Midwestern United States. Missouri is the 21st most extensive and the 18th most populous of the 50 United States. Missouri comprises 114 counties and the independent city of St. Louis. The four largest urban areas are St. Wikipedia
Area: 326 km2 calculated
Greensboro is a city in the U.S. state of North Carolina. It is the third-largest city by population in North Carolina and the largest city in Guilford County and the surrounding Piedmont Triad metropolitan region. According to the 2012 U.S. Census Estimate, Greensboro's population is 277,080. Wikipedia