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Finding the Fourth Proportional to 616,081.90, 850,186.38 and 344,177.05

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Solution

The fourth proportional to 616,081.90, 850,186.38 and 344,177.05 is: 474,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,081.90 : 850,186.38 = 344,177.05 : x
  2. Step 2: Convert to fraction form
    616,081.90/850,186.38 = 344,177.05/x
  3. Step 3: Cross multiply
    616,081.90x = 850,186.38 × 344,177.05
  4. Step 4: Simplify right side
    616,081.90x = 292,614,640,218.58
  5. Step 5: Solve for x
    x = 292,614,640,218.58/616,081.90
  6. Step 6: Final answer
    x = 474,960.62

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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.