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Finding the Fourth Proportional to 322,915.60, 483,912.60 and 238,013.20

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Solution

The fourth proportional to 322,915.60, 483,912.60 and 238,013.20 is: 356,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,915.60 : 483,912.60 = 238,013.20 : x
  2. Step 2: Convert to fraction form
    322,915.60/483,912.60 = 238,013.20/x
  3. Step 3: Cross multiply
    322,915.60x = 483,912.60 × 238,013.20
  4. Step 4: Simplify right side
    322,915.60x = 115,177,586,446.32
  5. Step 5: Solve for x
    x = 115,177,586,446.32/322,915.60
  6. Step 6: Final answer
    x = 356,680.16

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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.