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Finding the Fourth Proportional to 527,908.10, 791,862.15 and 520,034.90

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Solution

The fourth proportional to 527,908.10, 791,862.15 and 520,034.90 is: 780,052.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,908.10 : 791,862.15 = 520,034.90 : x
  2. Step 2: Convert to fraction form
    527,908.10/791,862.15 = 520,034.90/x
  3. Step 3: Cross multiply
    527,908.10x = 791,862.15 × 520,034.90
  4. Step 4: Simplify right side
    527,908.10x = 411,795,953,989.04
  5. Step 5: Solve for x
    x = 411,795,953,989.04/527,908.10
  6. Step 6: Final answer
    x = 780,052.35

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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.