Finding the Fourth Proportional to 1,187,899.51, 1,639,296.16 and 644,033.62
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Solution
The fourth proportional to 1,187,899.51, 1,639,296.16 and 644,033.62 is: 888,763.60
Step by Step Solution
- Step 1: Write the proportion equation
1,187,899.51 : 1,639,296.16 = 644,033.62 : x - Step 2: Convert to fraction form
1,187,899.51/1,639,296.16 = 644,033.62/x - Step 3: Cross multiply
1,187,899.51x = 1,639,296.16 × 644,033.62 - Step 4: Simplify right side
1,187,899.51x = 1,055,761,840,176.90 - Step 5: Solve for x
x = 1,055,761,840,176.90/1,187,899.51 - Step 6: Final answer
x = 888,763.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.