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Finding the Fourth Proportional to 567,401.20, 851,101.80 and 331,010.80

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Solution

The fourth proportional to 567,401.20, 851,101.80 and 331,010.80 is: 496,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,401.20 : 851,101.80 = 331,010.80 : x
  2. Step 2: Convert to fraction form
    567,401.20/851,101.80 = 331,010.80/x
  3. Step 3: Cross multiply
    567,401.20x = 851,101.80 × 331,010.80
  4. Step 4: Simplify right side
    567,401.20x = 281,723,887,699.44
  5. Step 5: Solve for x
    x = 281,723,887,699.44/567,401.20
  6. Step 6: Final answer
    x = 496,516.20

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Double scale
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Similar ratio
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1.5x scale

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.