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Finding the Fourth Proportional to 629,672.82, 868,262.43 and 425,369.19

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Solution

The fourth proportional to 629,672.82, 868,262.43 and 425,369.19 is: 586,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,672.82 : 868,262.43 = 425,369.19 : x
  2. Step 2: Convert to fraction form
    629,672.82/868,262.43 = 425,369.19/x
  3. Step 3: Cross multiply
    629,672.82x = 868,262.43 × 425,369.19
  4. Step 4: Simplify right side
    629,672.82x = 369,332,086,556.53
  5. Step 5: Solve for x
    x = 369,332,086,556.53/629,672.82
  6. Step 6: Final answer
    x = 586,546.02

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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.