[Grammar] At

[The French]

Hi all,

I need your help about this little point of grammar, I am reading the story of USA, but the use of the preposition 'at' in the following sentence stuck me a bit. can you explain me the use of at in this context, here is the beginning sentence:

"At 3.79 million square miles (9.83 million km2) and with over 309 million people, the United States is the third or fourth largest country by total area,.."

Thanks in advance.

 

[billmcd]

"At" in your example is equal to "in the amount of" or "with" or "for a total of". Another example: "At 300 pounds he was the heaviest man on the team."