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Finding the Fourth Proportional to 769,710.90, 1,062,169.68 and 425,524.92

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Solution

The fourth proportional to 769,710.90, 1,062,169.68 and 425,524.92 is: 587,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,710.90 : 1,062,169.68 = 425,524.92 : x
  2. Step 2: Convert to fraction form
    769,710.90/1,062,169.68 = 425,524.92/x
  3. Step 3: Cross multiply
    769,710.90x = 1,062,169.68 × 425,524.92
  4. Step 4: Simplify right side
    769,710.90x = 451,979,668,108.43
  5. Step 5: Solve for x
    x = 451,979,668,108.43/769,710.90
  6. Step 6: Final answer
    x = 587,207.05

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Double scale
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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.