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Finding the Fourth Proportional to 439,793.46, 659,753.10 and 140,277.42

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Solution

The fourth proportional to 439,793.46, 659,753.10 and 140,277.42 is: 210,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,793.46 : 659,753.10 = 140,277.42 : x
  2. Step 2: Convert to fraction form
    439,793.46/659,753.10 = 140,277.42/x
  3. Step 3: Cross multiply
    439,793.46x = 659,753.10 × 140,277.42
  4. Step 4: Simplify right side
    439,793.46x = 92,548,462,705.00
  5. Step 5: Solve for x
    x = 92,548,462,705.00/439,793.46
  6. Step 6: Final answer
    x = 210,436.20

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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.