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Finding the Fourth Proportional to 488,459.60, 732,689.40 and 329,027.30

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Solution

The fourth proportional to 488,459.60, 732,689.40 and 329,027.30 is: 493,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,459.60 : 732,689.40 = 329,027.30 : x
  2. Step 2: Convert to fraction form
    488,459.60/732,689.40 = 329,027.30/x
  3. Step 3: Cross multiply
    488,459.60x = 732,689.40 × 329,027.30
  4. Step 4: Simplify right side
    488,459.60x = 241,074,815,020.62
  5. Step 5: Solve for x
    x = 241,074,815,020.62/488,459.60
  6. Step 6: Final answer
    x = 493,540.95

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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.