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Finding the Fourth Proportional to 609,167.86, 914,276.68 and 422,310.58

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Solution

The fourth proportional to 609,167.86, 914,276.68 and 422,310.58 is: 633,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,167.86 : 914,276.68 = 422,310.58 : x
  2. Step 2: Convert to fraction form
    609,167.86/914,276.68 = 422,310.58/x
  3. Step 3: Cross multiply
    609,167.86x = 914,276.68 × 422,310.58
  4. Step 4: Simplify right side
    609,167.86x = 386,108,716,812.61
  5. Step 5: Solve for x
    x = 386,108,716,812.61/609,167.86
  6. Step 6: Final answer
    x = 633,829.75

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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.