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Finding the Fourth Proportional to 629,231.54, 868,359.57 and 342,760.82

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Solution

The fourth proportional to 629,231.54, 868,359.57 and 342,760.82 is: 473,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,231.54 : 868,359.57 = 342,760.82 : x
  2. Step 2: Convert to fraction form
    629,231.54/868,359.57 = 342,760.82/x
  3. Step 3: Cross multiply
    629,231.54x = 868,359.57 × 342,760.82
  4. Step 4: Simplify right side
    629,231.54x = 297,639,638,268.05
  5. Step 5: Solve for x
    x = 297,639,638,268.05/629,231.54
  6. Step 6: Final answer
    x = 473,020.85

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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.