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Finding the Fourth Proportional to 458,434.87, 687,652.27 and 174,124.71

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Solution

The fourth proportional to 458,434.87, 687,652.27 and 174,124.71 is: 261,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,434.87 : 687,652.27 = 174,124.71 : x
  2. Step 2: Convert to fraction form
    458,434.87/687,652.27 = 174,124.71/x
  3. Step 3: Cross multiply
    458,434.87x = 687,652.27 × 174,124.71
  4. Step 4: Simplify right side
    458,434.87x = 119,737,251,659.28
  5. Step 5: Solve for x
    x = 119,737,251,659.28/458,434.87
  6. Step 6: Final answer
    x = 261,187.05

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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.