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Finding the Fourth Proportional to 485,175.80, 727,763.70 and 367,077.80

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Solution

The fourth proportional to 485,175.80, 727,763.70 and 367,077.80 is: 550,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,175.80 : 727,763.70 = 367,077.80 : x
  2. Step 2: Convert to fraction form
    485,175.80/727,763.70 = 367,077.80/x
  3. Step 3: Cross multiply
    485,175.80x = 727,763.70 × 367,077.80
  4. Step 4: Simplify right side
    485,175.80x = 267,145,897,915.86
  5. Step 5: Solve for x
    x = 267,145,897,915.86/485,175.80
  6. Step 6: Final answer
    x = 550,616.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.