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Finding the Fourth Proportional to 792.23, 1,188.54 and 244.49

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Solution

The fourth proportional to 792.23, 1,188.54 and 244.49 is: 366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.23 : 1,188.54 = 244.49 : x
  2. Step 2: Convert to fraction form
    792.23/1,188.54 = 244.49/x
  3. Step 3: Cross multiply
    792.23x = 1,188.54 × 244.49
  4. Step 4: Simplify right side
    792.23x = 290,580.20
  5. Step 5: Solve for x
    x = 290,580.20/792.23
  6. Step 6: Final answer
    x = 366.79

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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.