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Finding the Fourth Proportional to 580,017.40, 870,343.22 and 225,045.43

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Solution

The fourth proportional to 580,017.40, 870,343.22 and 225,045.43 is: 337,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,017.40 : 870,343.22 = 225,045.43 : x
  2. Step 2: Convert to fraction form
    580,017.40/870,343.22 = 225,045.43/x
  3. Step 3: Cross multiply
    580,017.40x = 870,343.22 × 225,045.43
  4. Step 4: Simplify right side
    580,017.40x = 195,866,764,755.10
  5. Step 5: Solve for x
    x = 195,866,764,755.10/580,017.40
  6. Step 6: Final answer
    x = 337,691.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.