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Finding the Fourth Proportional to 322,910.20, 483,213.30 and 204,638.20

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Solution

The fourth proportional to 322,910.20, 483,213.30 and 204,638.20 is: 306,227.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,910.20 : 483,213.30 = 204,638.20 : x
  2. Step 2: Convert to fraction form
    322,910.20/483,213.30 = 204,638.20/x
  3. Step 3: Cross multiply
    322,910.20x = 483,213.30 × 204,638.20
  4. Step 4: Simplify right side
    322,910.20x = 98,883,899,928.06
  5. Step 5: Solve for x
    x = 98,883,899,928.06/322,910.20
  6. Step 6: Final answer
    x = 306,227.24

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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.