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Finding the Fourth Proportional to 616,701.28, 851,310.08 and 375,061.46

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Solution

The fourth proportional to 616,701.28, 851,310.08 and 375,061.46 is: 517,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,701.28 : 851,310.08 = 375,061.46 : x
  2. Step 2: Convert to fraction form
    616,701.28/851,310.08 = 375,061.46/x
  3. Step 3: Cross multiply
    616,701.28x = 851,310.08 × 375,061.46
  4. Step 4: Simplify right side
    616,701.28x = 319,293,601,517.52
  5. Step 5: Solve for x
    x = 319,293,601,517.52/616,701.28
  6. Step 6: Final answer
    x = 517,744.35

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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.