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Finding the Fourth Proportional to 791.93, 1,187.82 and 244.10

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Solution

The fourth proportional to 791.93, 1,187.82 and 244.10 is: 366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.93 : 1,187.82 = 244.10 : x
  2. Step 2: Convert to fraction form
    791.93/1,187.82 = 244.10/x
  3. Step 3: Cross multiply
    791.93x = 1,187.82 × 244.10
  4. Step 4: Simplify right side
    791.93x = 289,940.92
  5. Step 5: Solve for x
    x = 289,940.92/791.93
  6. Step 6: Final answer
    x = 366.12

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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.