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Finding the Fourth Proportional to 625,772.82, 938,612.05 and 199,291.42

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Solution

The fourth proportional to 625,772.82, 938,612.05 and 199,291.42 is: 298,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,772.82 : 938,612.05 = 199,291.42 : x
  2. Step 2: Convert to fraction form
    625,772.82/938,612.05 = 199,291.42/x
  3. Step 3: Cross multiply
    625,772.82x = 938,612.05 × 199,291.42
  4. Step 4: Simplify right side
    625,772.82x = 187,057,327,277.15
  5. Step 5: Solve for x
    x = 187,057,327,277.15/625,772.82
  6. Step 6: Final answer
    x = 298,922.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.