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Finding the Fourth Proportional to 625,731.77, 863,456.69 and 353,761.91

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Solution

The fourth proportional to 625,731.77, 863,456.69 and 353,761.91 is: 488,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,731.77 : 863,456.69 = 353,761.91 : x
  2. Step 2: Convert to fraction form
    625,731.77/863,456.69 = 353,761.91/x
  3. Step 3: Cross multiply
    625,731.77x = 863,456.69 × 353,761.91
  4. Step 4: Simplify right side
    625,731.77x = 305,458,081,770.59
  5. Step 5: Solve for x
    x = 305,458,081,770.59/625,731.77
  6. Step 6: Final answer
    x = 488,161.38

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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.