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Finding the Fourth Proportional to 414,872.72, 572,531.64 and 245,106.44

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Solution

The fourth proportional to 414,872.72, 572,531.64 and 245,106.44 is: 338,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,872.72 : 572,531.64 = 245,106.44 : x
  2. Step 2: Convert to fraction form
    414,872.72/572,531.64 = 245,106.44/x
  3. Step 3: Cross multiply
    414,872.72x = 572,531.64 × 245,106.44
  4. Step 4: Simplify right side
    414,872.72x = 140,331,192,067.76
  5. Step 5: Solve for x
    x = 140,331,192,067.76/414,872.72
  6. Step 6: Final answer
    x = 338,251.19

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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.