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Finding the Fourth Proportional to 625,566.78, 863,204.82 and 444,212.64

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Solution

The fourth proportional to 625,566.78, 863,204.82 and 444,212.64 is: 612,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,566.78 : 863,204.82 = 444,212.64 : x
  2. Step 2: Convert to fraction form
    625,566.78/863,204.82 = 444,212.64/x
  3. Step 3: Cross multiply
    625,566.78x = 863,204.82 × 444,212.64
  4. Step 4: Simplify right side
    625,566.78x = 383,446,491,952.93
  5. Step 5: Solve for x
    x = 383,446,491,952.93/625,566.78
  6. Step 6: Final answer
    x = 612,958.53

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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.