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Finding the Fourth Proportional to 519,481.82, 717,004.25 and 304,691.08

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Solution

The fourth proportional to 519,481.82, 717,004.25 and 304,691.08 is: 420,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,481.82 : 717,004.25 = 304,691.08 : x
  2. Step 2: Convert to fraction form
    519,481.82/717,004.25 = 304,691.08/x
  3. Step 3: Cross multiply
    519,481.82x = 717,004.25 × 304,691.08
  4. Step 4: Simplify right side
    519,481.82x = 218,464,796,473.80
  5. Step 5: Solve for x
    x = 218,464,796,473.80/519,481.82
  6. Step 6: Final answer
    x = 420,543.68

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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.