Home / 527,656,893.60-791,485,340.40-391,607,997.60

Finding the Fourth Proportional to 527,656,893.60, 791,485,340.40 and 391,607,997.60

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Solution

The fourth proportional to 527,656,893.60, 791,485,340.40 and 391,607,997.60 is: 587,411,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,656,893.60 : 791,485,340.40 = 391,607,997.60 : x
  2. Step 2: Convert to fraction form
    527,656,893.60/791,485,340.40 = 391,607,997.60/x
  3. Step 3: Cross multiply
    527,656,893.60x = 791,485,340.40 × 391,607,997.60
  4. Step 4: Simplify right side
    527,656,893.60x = 309,951,989,283,798,400
  5. Step 5: Solve for x
    x = 309,951,989,283,798,400/527,656,893.60
  6. Step 6: Final answer
    x = 587,411,996.40

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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.