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Finding the Fourth Proportional to 625,573.72, 863,290.86 and 339,093.73

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Solution

The fourth proportional to 625,573.72, 863,290.86 and 339,093.73 is: 467,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,573.72 : 863,290.86 = 339,093.73 : x
  2. Step 2: Convert to fraction form
    625,573.72/863,290.86 = 339,093.73/x
  3. Step 3: Cross multiply
    625,573.72x = 863,290.86 × 339,093.73
  4. Step 4: Simplify right side
    625,573.72x = 292,736,517,792.31
  5. Step 5: Solve for x
    x = 292,736,517,792.31/625,573.72
  6. Step 6: Final answer
    x = 467,948.87

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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.