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Finding the Fourth Proportional to 792.55, 1,188.83 and 244.72

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Solution

The fourth proportional to 792.55, 1,188.83 and 244.72 is: 367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.55 : 1,188.83 = 244.72 : x
  2. Step 2: Convert to fraction form
    792.55/1,188.83 = 244.72/x
  3. Step 3: Cross multiply
    792.55x = 1,188.83 × 244.72
  4. Step 4: Simplify right side
    792.55x = 290,932.58
  5. Step 5: Solve for x
    x = 290,932.58/792.55
  6. Step 6: Final answer
    x = 367.08

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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.