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Finding the Fourth Proportional to 503,469.48, 694,434.15 and 331,332.60

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Solution

The fourth proportional to 503,469.48, 694,434.15 and 331,332.60 is: 457,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,469.48 : 694,434.15 = 331,332.60 : x
  2. Step 2: Convert to fraction form
    503,469.48/694,434.15 = 331,332.60/x
  3. Step 3: Cross multiply
    503,469.48x = 694,434.15 × 331,332.60
  4. Step 4: Simplify right side
    503,469.48x = 230,088,672,448.29
  5. Step 5: Solve for x
    x = 230,088,672,448.29/503,469.48
  6. Step 6: Final answer
    x = 457,006.20

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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.