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Finding the Fourth Proportional to 567,375.20, 851,062.80 and 512,079.20

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Solution

The fourth proportional to 567,375.20, 851,062.80 and 512,079.20 is: 768,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,375.20 : 851,062.80 = 512,079.20 : x
  2. Step 2: Convert to fraction form
    567,375.20/851,062.80 = 512,079.20/x
  3. Step 3: Cross multiply
    567,375.20x = 851,062.80 × 512,079.20
  4. Step 4: Simplify right side
    567,375.20x = 435,811,557,773.76
  5. Step 5: Solve for x
    x = 435,811,557,773.76/567,375.20
  6. Step 6: Final answer
    x = 768,118.80

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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.