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Finding the Fourth Proportional to 791.48, 1,186.86 and 466.94

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Solution

The fourth proportional to 791.48, 1,186.86 and 466.94 is: 700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.48 : 1,186.86 = 466.94 : x
  2. Step 2: Convert to fraction form
    791.48/1,186.86 = 466.94/x
  3. Step 3: Cross multiply
    791.48x = 1,186.86 × 466.94
  4. Step 4: Simplify right side
    791.48x = 554,192.41
  5. Step 5: Solve for x
    x = 554,192.41/791.48
  6. Step 6: Final answer
    x = 700.20

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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.