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Finding the Fourth Proportional to 527,909.40, 791,864.10 and 527,909.40

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Solution

The fourth proportional to 527,909.40, 791,864.10 and 527,909.40 is: 791,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,909.40 : 791,864.10 = 527,909.40 : x
  2. Step 2: Convert to fraction form
    527,909.40/791,864.10 = 527,909.40/x
  3. Step 3: Cross multiply
    527,909.40x = 791,864.10 × 527,909.40
  4. Step 4: Simplify right side
    527,909.40x = 418,032,501,912.54
  5. Step 5: Solve for x
    x = 418,032,501,912.54/527,909.40
  6. Step 6: Final answer
    x = 791,864.10

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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.