Home / 269,524.20-404,286.30-79,991.40

Finding the Fourth Proportional to 269,524.20, 404,286.30 and 79,991.40

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Solution

The fourth proportional to 269,524.20, 404,286.30 and 79,991.40 is: 119,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,524.20 : 404,286.30 = 79,991.40 : x
  2. Step 2: Convert to fraction form
    269,524.20/404,286.30 = 79,991.40/x
  3. Step 3: Cross multiply
    269,524.20x = 404,286.30 × 79,991.40
  4. Step 4: Simplify right side
    269,524.20x = 32,339,427,137.82
  5. Step 5: Solve for x
    x = 32,339,427,137.82/269,524.20
  6. Step 6: Final answer
    x = 119,987.10

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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.