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Finding the Fourth Proportional to 424,651.27, 586,034.92 and 243,398.18

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Solution

The fourth proportional to 424,651.27, 586,034.92 and 243,398.18 is: 335,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,651.27 : 586,034.92 = 243,398.18 : x
  2. Step 2: Convert to fraction form
    424,651.27/586,034.92 = 243,398.18/x
  3. Step 3: Cross multiply
    424,651.27x = 586,034.92 × 243,398.18
  4. Step 4: Simplify right side
    424,651.27x = 142,639,829,405.78
  5. Step 5: Solve for x
    x = 142,639,829,405.78/424,651.27
  6. Step 6: Final answer
    x = 335,898.75

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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.