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Finding the Fourth Proportional to 367,008.05, 550,512.09 and 311,020.85

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Solution

The fourth proportional to 367,008.05, 550,512.09 and 311,020.85 is: 466,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,008.05 : 550,512.09 = 311,020.85 : x
  2. Step 2: Convert to fraction form
    367,008.05/550,512.09 = 311,020.85/x
  3. Step 3: Cross multiply
    367,008.05x = 550,512.09 × 311,020.85
  4. Step 4: Simplify right side
    367,008.05x = 171,220,738,167.08
  5. Step 5: Solve for x
    x = 171,220,738,167.08/367,008.05
  6. Step 6: Final answer
    x = 466,531.29

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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.