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Finding the Fourth Proportional to 792.17, 1,188.49 and 244.34

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Solution

The fourth proportional to 792.17, 1,188.49 and 244.34 is: 366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.17 : 1,188.49 = 244.34 : x
  2. Step 2: Convert to fraction form
    792.17/1,188.49 = 244.34/x
  3. Step 3: Cross multiply
    792.17x = 1,188.49 × 244.34
  4. Step 4: Simplify right side
    792.17x = 290,395.65
  5. Step 5: Solve for x
    x = 290,395.65/792.17
  6. Step 6: Final answer
    x = 366.58

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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.