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Finding the Fourth Proportional to 269,451.20, 403,739.40 and 169,432.40

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Solution

The fourth proportional to 269,451.20, 403,739.40 and 169,432.40 is: 253,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,451.20 : 403,739.40 = 169,432.40 : x
  2. Step 2: Convert to fraction form
    269,451.20/403,739.40 = 169,432.40/x
  3. Step 3: Cross multiply
    269,451.20x = 403,739.40 × 169,432.40
  4. Step 4: Simplify right side
    269,451.20x = 68,406,535,516.56
  5. Step 5: Solve for x
    x = 68,406,535,516.56/269,451.20
  6. Step 6: Final answer
    x = 253,873.56

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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.