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Finding the Fourth Proportional to 452,920.28, 625,014.78 and 251,711.96

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Solution

The fourth proportional to 452,920.28, 625,014.78 and 251,711.96 is: 347,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,920.28 : 625,014.78 = 251,711.96 : x
  2. Step 2: Convert to fraction form
    452,920.28/625,014.78 = 251,711.96/x
  3. Step 3: Cross multiply
    452,920.28x = 625,014.78 × 251,711.96
  4. Step 4: Simplify right side
    452,920.28x = 157,323,695,302.77
  5. Step 5: Solve for x
    x = 157,323,695,302.77/452,920.28
  6. Step 6: Final answer
    x = 347,354.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.