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Finding the Fourth Proportional to 625,516.24, 863,213.94 and 339,036.04

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Solution

The fourth proportional to 625,516.24, 863,213.94 and 339,036.04 is: 467,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,516.24 : 863,213.94 = 339,036.04 : x
  2. Step 2: Convert to fraction form
    625,516.24/863,213.94 = 339,036.04/x
  3. Step 3: Cross multiply
    625,516.24x = 863,213.94 × 339,036.04
  4. Step 4: Simplify right side
    625,516.24x = 292,660,635,890.40
  5. Step 5: Solve for x
    x = 292,660,635,890.40/625,516.24
  6. Step 6: Final answer
    x = 467,870.56

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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.