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Finding the Fourth Proportional to 621,825.92, 932,634.54 and 172,592.43

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Solution

The fourth proportional to 621,825.92, 932,634.54 and 172,592.43 is: 258,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,825.92 : 932,634.54 = 172,592.43 : x
  2. Step 2: Convert to fraction form
    621,825.92/932,634.54 = 172,592.43/x
  3. Step 3: Cross multiply
    621,825.92x = 932,634.54 × 172,592.43
  4. Step 4: Simplify right side
    621,825.92x = 160,965,661,560.53
  5. Step 5: Solve for x
    x = 160,965,661,560.53/621,825.92
  6. Step 6: Final answer
    x = 258,859.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.