455,329,950 lie between 455,329,900 and 455,330,000
To round 455,329,950 to the closest hundred, we apply the rule to round the number with algarism 5. This rule determine that we must round the number to the closest even algarism in the place of the significant digit.
In this case, we must round 455,329,950 to 455,330,000.