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Finding the Fourth Proportional to 625,213.52, 862,743.60 and 367,063.28

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Solution

The fourth proportional to 625,213.52, 862,743.60 and 367,063.28 is: 506,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,213.52 : 862,743.60 = 367,063.28 : x
  2. Step 2: Convert to fraction form
    625,213.52/862,743.60 = 367,063.28/x
  3. Step 3: Cross multiply
    625,213.52x = 862,743.60 × 367,063.28
  4. Step 4: Simplify right side
    625,213.52x = 316,681,495,615.01
  5. Step 5: Solve for x
    x = 316,681,495,615.01/625,213.52
  6. Step 6: Final answer
    x = 506,517.35

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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.