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Finding the Fourth Proportional to 609,580.20, 914,414.12 and 210,215.20

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Solution

The fourth proportional to 609,580.20, 914,414.12 and 210,215.20 is: 315,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,580.20 : 914,414.12 = 210,215.20 : x
  2. Step 2: Convert to fraction form
    609,580.20/914,414.12 = 210,215.20/x
  3. Step 3: Cross multiply
    609,580.20x = 914,414.12 × 210,215.20
  4. Step 4: Simplify right side
    609,580.20x = 192,223,747,118.62
  5. Step 5: Solve for x
    x = 192,223,747,118.62/609,580.20
  6. Step 6: Final answer
    x = 315,337.91

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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.