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Finding the Fourth Proportional to 792.22, 1,188.46 and 244.39

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Solution

The fourth proportional to 792.22, 1,188.46 and 244.39 is: 366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.22 : 1,188.46 = 244.39 : x
  2. Step 2: Convert to fraction form
    792.22/1,188.46 = 244.39/x
  3. Step 3: Cross multiply
    792.22x = 1,188.46 × 244.39
  4. Step 4: Simplify right side
    792.22x = 290,447.74
  5. Step 5: Solve for x
    x = 290,447.74/792.22
  6. Step 6: Final answer
    x = 366.63

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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.