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Finding the Fourth Proportional to 622,508.70, 934,200.45 and 398,414.10

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Solution

The fourth proportional to 622,508.70, 934,200.45 and 398,414.10 is: 597,901.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,508.70 : 934,200.45 = 398,414.10 : x
  2. Step 2: Convert to fraction form
    622,508.70/934,200.45 = 398,414.10/x
  3. Step 3: Cross multiply
    622,508.70x = 934,200.45 × 398,414.10
  4. Step 4: Simplify right side
    622,508.70x = 372,198,631,506.35
  5. Step 5: Solve for x
    x = 372,198,631,506.35/622,508.70
  6. Step 6: Final answer
    x = 597,901.09

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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.