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Finding the Fourth Proportional to 414,653.92, 572,079.21 and 251,362.78

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Solution

The fourth proportional to 414,653.92, 572,079.21 and 251,362.78 is: 346,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,653.92 : 572,079.21 = 251,362.78 : x
  2. Step 2: Convert to fraction form
    414,653.92/572,079.21 = 251,362.78/x
  3. Step 3: Cross multiply
    414,653.92x = 572,079.21 × 251,362.78
  4. Step 4: Simplify right side
    414,653.92x = 143,799,418,233.00
  5. Step 5: Solve for x
    x = 143,799,418,233.00/414,653.92
  6. Step 6: Final answer
    x = 346,793.83

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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.