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Finding the Fourth Proportional to 591,251.20, 886,876.80 and 402,294.40

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Solution

The fourth proportional to 591,251.20, 886,876.80 and 402,294.40 is: 603,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,251.20 : 886,876.80 = 402,294.40 : x
  2. Step 2: Convert to fraction form
    591,251.20/886,876.80 = 402,294.40/x
  3. Step 3: Cross multiply
    591,251.20x = 886,876.80 × 402,294.40
  4. Step 4: Simplify right side
    591,251.20x = 356,785,570,129.92
  5. Step 5: Solve for x
    x = 356,785,570,129.92/591,251.20
  6. Step 6: Final answer
    x = 603,441.60

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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.