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Finding the Fourth Proportional to 616,872.50, 851,279.24 and 344,940.92

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Solution

The fourth proportional to 616,872.50, 851,279.24 and 344,940.92 is: 476,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,872.50 : 851,279.24 = 344,940.92 : x
  2. Step 2: Convert to fraction form
    616,872.50/851,279.24 = 344,940.92/x
  3. Step 3: Cross multiply
    616,872.50x = 851,279.24 × 344,940.92
  4. Step 4: Simplify right side
    616,872.50x = 293,641,042,080.46
  5. Step 5: Solve for x
    x = 293,641,042,080.46/616,872.50
  6. Step 6: Final answer
    x = 476,015.78

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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.