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Finding the Fourth Proportional to 791.25, 1,186.67 and 466.85

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Solution

The fourth proportional to 791.25, 1,186.67 and 466.85 is: 700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.25 : 1,186.67 = 466.85 : x
  2. Step 2: Convert to fraction form
    791.25/1,186.67 = 466.85/x
  3. Step 3: Cross multiply
    791.25x = 1,186.67 × 466.85
  4. Step 4: Simplify right side
    791.25x = 553,988.62
  5. Step 5: Solve for x
    x = 553,988.62/791.25
  6. Step 6: Final answer
    x = 700.14

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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.