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Finding the Fourth Proportional to 462,915.56, 694,373.34 and 439,276.52

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Solution

The fourth proportional to 462,915.56, 694,373.34 and 439,276.52 is: 658,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,915.56 : 694,373.34 = 439,276.52 : x
  2. Step 2: Convert to fraction form
    462,915.56/694,373.34 = 439,276.52/x
  3. Step 3: Cross multiply
    462,915.56x = 694,373.34 × 439,276.52
  4. Step 4: Simplify right side
    462,915.56x = 305,021,904,375.98
  5. Step 5: Solve for x
    x = 305,021,904,375.98/462,915.56
  6. Step 6: Final answer
    x = 658,914.78

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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.