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Finding the Fourth Proportional to 527,951.60, 791,927.40 and 520,078.40

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Solution

The fourth proportional to 527,951.60, 791,927.40 and 520,078.40 is: 780,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,951.60 : 791,927.40 = 520,078.40 : x
  2. Step 2: Convert to fraction form
    527,951.60/791,927.40 = 520,078.40/x
  3. Step 3: Cross multiply
    527,951.60x = 791,927.40 × 520,078.40
  4. Step 4: Simplify right side
    527,951.60x = 411,864,335,108.16
  5. Step 5: Solve for x
    x = 411,864,335,108.16/527,951.60
  6. Step 6: Final answer
    x = 780,117.60

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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.