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Finding the Fourth Proportional to 539,067.85, 808,601.78 and 512,823.85

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Solution

The fourth proportional to 539,067.85, 808,601.78 and 512,823.85 is: 769,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,067.85 : 808,601.78 = 512,823.85 : x
  2. Step 2: Convert to fraction form
    539,067.85/808,601.78 = 512,823.85/x
  3. Step 3: Cross multiply
    539,067.85x = 808,601.78 × 512,823.85
  4. Step 4: Simplify right side
    539,067.85x = 414,670,275,372.33
  5. Step 5: Solve for x
    x = 414,670,275,372.33/539,067.85
  6. Step 6: Final answer
    x = 769,235.78

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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.