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Finding the Fourth Proportional to 629,356.24, 868,507.08 and 342,876.24

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Solution

The fourth proportional to 629,356.24, 868,507.08 and 342,876.24 is: 473,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,356.24 : 868,507.08 = 342,876.24 : x
  2. Step 2: Convert to fraction form
    629,356.24/868,507.08 = 342,876.24/x
  3. Step 3: Cross multiply
    629,356.24x = 868,507.08 × 342,876.24
  4. Step 4: Simplify right side
    629,356.24x = 297,790,442,003.78
  5. Step 5: Solve for x
    x = 297,790,442,003.78/629,356.24
  6. Step 6: Final answer
    x = 473,166.74

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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.