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Finding the Fourth Proportional to 269,434.38, 404,220.21 and 79,901.67

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Solution

The fourth proportional to 269,434.38, 404,220.21 and 79,901.67 is: 119,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,434.38 : 404,220.21 = 79,901.67 : x
  2. Step 2: Convert to fraction form
    269,434.38/404,220.21 = 79,901.67/x
  3. Step 3: Cross multiply
    269,434.38x = 404,220.21 × 79,901.67
  4. Step 4: Simplify right side
    269,434.38x = 32,297,869,826.75
  5. Step 5: Solve for x
    x = 32,297,869,826.75/269,434.38
  6. Step 6: Final answer
    x = 119,872.86

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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.