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Finding the Fourth Proportional to 792, 1,188.16 and 244.16

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Solution

The fourth proportional to 792, 1,188.16 and 244.16 is: 366.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    792 : 1,188.16 = 244.16 : x
  2. Step 2: Convert to fraction form
    792/1,188.16 = 244.16/x
  3. Step 3: Cross multiply
    792x = 1,188.16 × 244.16
  4. Step 4: Simplify right side
    792x = 290,099.05
  5. Step 5: Solve for x
    x = 290,099.05/792
  6. Step 6: Final answer
    x = 366.29

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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.