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Finding the Fourth Proportional to 441,348.20, 661,503.90 and 204,189.92

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Solution

The fourth proportional to 441,348.20, 661,503.90 and 204,189.92 is: 306,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,348.20 : 661,503.90 = 204,189.92 : x
  2. Step 2: Convert to fraction form
    441,348.20/661,503.90 = 204,189.92/x
  3. Step 3: Cross multiply
    441,348.20x = 661,503.90 × 204,189.92
  4. Step 4: Simplify right side
    441,348.20x = 135,072,428,420.69
  5. Step 5: Solve for x
    x = 135,072,428,420.69/441,348.20
  6. Step 6: Final answer
    x = 306,045.04

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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.