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Finding the Fourth Proportional to 399,083.26, 550,805.88 and 237,948.52

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Solution

The fourth proportional to 399,083.26, 550,805.88 and 237,948.52 is: 328,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,083.26 : 550,805.88 = 237,948.52 : x
  2. Step 2: Convert to fraction form
    399,083.26/550,805.88 = 237,948.52/x
  3. Step 3: Cross multiply
    399,083.26x = 550,805.88 × 237,948.52
  4. Step 4: Simplify right side
    399,083.26x = 131,063,443,953.30
  5. Step 5: Solve for x
    x = 131,063,443,953.30/399,083.26
  6. Step 6: Final answer
    x = 328,411.28

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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.