721000 is the result.
16.558 rounded to three significant figures is 16.6
0.00721004 rounded to three significant figures is 0.00721
44.981 rounded to three significant figures is 45.0
0.00858345 rounded to three significant figures is 0.00858
1,399.54 rounded to three significant figures is 1.40e3
79,966.92 rounded to three significant figures is 8.00e4
It is then 2.64 when rounded to three significant figures
0.00076321cg rounded to three significant figures is 0.000763cg
That depends on how many significant figures you are talking about.If three significant figures then 700 is the largest that rounds to 700.If four significant figures are to be rounded to three significant figures then 700.4If five significant figures are to be rounded to three significant figures then 700.49If six significant figures are to be rounded to three significant figures then 700.499etc.
10,074 rounded up to the three significant figures is 10,100
9,682 rounded to three significant figures is 9,680.