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Finding the Fourth Proportional to 396,345.15, 547,098.15 and 235,200.20

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Solution

The fourth proportional to 396,345.15, 547,098.15 and 235,200.20 is: 324,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,345.15 : 547,098.15 = 235,200.20 : x
  2. Step 2: Convert to fraction form
    396,345.15/547,098.15 = 235,200.20/x
  3. Step 3: Cross multiply
    396,345.15x = 547,098.15 × 235,200.20
  4. Step 4: Simplify right side
    396,345.15x = 128,677,591,564.14
  5. Step 5: Solve for x
    x = 128,677,591,564.14/396,345.15
  6. Step 6: Final answer
    x = 324,660.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.