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Finding the Fourth Proportional to 591,710.60, 887,565.90 and 379,134.20

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Solution

The fourth proportional to 591,710.60, 887,565.90 and 379,134.20 is: 568,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,710.60 : 887,565.90 = 379,134.20 : x
  2. Step 2: Convert to fraction form
    591,710.60/887,565.90 = 379,134.20/x
  3. Step 3: Cross multiply
    591,710.60x = 887,565.90 × 379,134.20
  4. Step 4: Simplify right side
    591,710.60x = 336,506,587,443.78
  5. Step 5: Solve for x
    x = 336,506,587,443.78/591,710.60
  6. Step 6: Final answer
    x = 568,701.30

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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.