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Finding the Fourth Proportional to 567,197.96, 782,771.13 and 312,549.17

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Solution

The fourth proportional to 567,197.96, 782,771.13 and 312,549.17 is: 431,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,197.96 : 782,771.13 = 312,549.17 : x
  2. Step 2: Convert to fraction form
    567,197.96/782,771.13 = 312,549.17/x
  3. Step 3: Cross multiply
    567,197.96x = 782,771.13 × 312,549.17
  4. Step 4: Simplify right side
    567,197.96x = 244,654,463,067.61
  5. Step 5: Solve for x
    x = 244,654,463,067.61/567,197.96
  6. Step 6: Final answer
    x = 431,338.76

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1.5x scale

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.