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Finding the Fourth Proportional to 541,398.20, 812,097.30 and 331,446.20

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Solution

The fourth proportional to 541,398.20, 812,097.30 and 331,446.20 is: 497,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,398.20 : 812,097.30 = 331,446.20 : x
  2. Step 2: Convert to fraction form
    541,398.20/812,097.30 = 331,446.20/x
  3. Step 3: Cross multiply
    541,398.20x = 812,097.30 × 331,446.20
  4. Step 4: Simplify right side
    541,398.20x = 269,166,564,115.26
  5. Step 5: Solve for x
    x = 269,166,564,115.26/541,398.20
  6. Step 6: Final answer
    x = 497,169.30

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Double scale
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Similar ratio
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1.5x scale

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.