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Finding the Fourth Proportional to 625,794.88, 863,596.96 and 339,314.88

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Solution

The fourth proportional to 625,794.88, 863,596.96 and 339,314.88 is: 468,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,794.88 : 863,596.96 = 339,314.88 : x
  2. Step 2: Convert to fraction form
    625,794.88/863,596.96 = 339,314.88/x
  3. Step 3: Cross multiply
    625,794.88x = 863,596.96 × 339,314.88
  4. Step 4: Simplify right side
    625,794.88x = 293,031,298,850.77
  5. Step 5: Solve for x
    x = 293,031,298,850.77/625,794.88
  6. Step 6: Final answer
    x = 468,254.55

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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.