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Finding the Fourth Proportional to 534,156.60, 801,234.90 and 254,220.60

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Solution

The fourth proportional to 534,156.60, 801,234.90 and 254,220.60 is: 381,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,156.60 : 801,234.90 = 254,220.60 : x
  2. Step 2: Convert to fraction form
    534,156.60/801,234.90 = 254,220.60/x
  3. Step 3: Cross multiply
    534,156.60x = 801,234.90 × 254,220.60
  4. Step 4: Simplify right side
    534,156.60x = 203,690,417,018.94
  5. Step 5: Solve for x
    x = 203,690,417,018.94/534,156.60
  6. Step 6: Final answer
    x = 381,330.90

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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.