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Finding the Fourth Proportional to 331,290.54, 495,954.09 and 204,523.18

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Solution

The fourth proportional to 331,290.54, 495,954.09 and 204,523.18 is: 306,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,290.54 : 495,954.09 = 204,523.18 : x
  2. Step 2: Convert to fraction form
    331,290.54/495,954.09 = 204,523.18/x
  3. Step 3: Cross multiply
    331,290.54x = 495,954.09 × 204,523.18
  4. Step 4: Simplify right side
    331,290.54x = 101,434,106,380.92
  5. Step 5: Solve for x
    x = 101,434,106,380.92/331,290.54
  6. Step 6: Final answer
    x = 306,178.70

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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.