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Finding the Fourth Proportional to 417,517.76, 576,175.80 and 226,532.72

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Solution

The fourth proportional to 417,517.76, 576,175.80 and 226,532.72 is: 312,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,517.76 : 576,175.80 = 226,532.72 : x
  2. Step 2: Convert to fraction form
    417,517.76/576,175.80 = 226,532.72/x
  3. Step 3: Cross multiply
    417,517.76x = 576,175.80 × 226,532.72
  4. Step 4: Simplify right side
    417,517.76x = 130,522,671,172.18
  5. Step 5: Solve for x
    x = 130,522,671,172.18/417,517.76
  6. Step 6: Final answer
    x = 312,615.85

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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.