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Finding the Fourth Proportional to 464,572.43, 641,384.78 and 292,637.78

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Solution

The fourth proportional to 464,572.43, 641,384.78 and 292,637.78 is: 404,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,572.43 : 641,384.78 = 292,637.78 : x
  2. Step 2: Convert to fraction form
    464,572.43/641,384.78 = 292,637.78/x
  3. Step 3: Cross multiply
    464,572.43x = 641,384.78 × 292,637.78
  4. Step 4: Simplify right side
    464,572.43x = 187,693,413,474.88
  5. Step 5: Solve for x
    x = 187,693,413,474.88/464,572.43
  6. Step 6: Final answer
    x = 404,013.25

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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.