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Finding the Fourth Proportional to 453,862.20, 680,793.30 and 276,715.20

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Solution

The fourth proportional to 453,862.20, 680,793.30 and 276,715.20 is: 415,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,862.20 : 680,793.30 = 276,715.20 : x
  2. Step 2: Convert to fraction form
    453,862.20/680,793.30 = 276,715.20/x
  3. Step 3: Cross multiply
    453,862.20x = 680,793.30 × 276,715.20
  4. Step 4: Simplify right side
    453,862.20x = 188,385,854,168.16
  5. Step 5: Solve for x
    x = 188,385,854,168.16/453,862.20
  6. Step 6: Final answer
    x = 415,072.80

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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.