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Finding the Fourth Proportional to 634,614.20, 951,921.30 and 606,620.60

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Solution

The fourth proportional to 634,614.20, 951,921.30 and 606,620.60 is: 909,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,614.20 : 951,921.30 = 606,620.60 : x
  2. Step 2: Convert to fraction form
    634,614.20/951,921.30 = 606,620.60/x
  3. Step 3: Cross multiply
    634,614.20x = 951,921.30 × 606,620.60
  4. Step 4: Simplify right side
    634,614.20x = 577,455,070,158.78
  5. Step 5: Solve for x
    x = 577,455,070,158.78/634,614.20
  6. Step 6: Final answer
    x = 909,930.90

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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.