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Finding the Fourth Proportional to 708.52, 1,062.80 and 195.52

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Solution

The fourth proportional to 708.52, 1,062.80 and 195.52 is: 293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.52 : 1,062.80 = 195.52 : x
  2. Step 2: Convert to fraction form
    708.52/1,062.80 = 195.52/x
  3. Step 3: Cross multiply
    708.52x = 1,062.80 × 195.52
  4. Step 4: Simplify right side
    708.52x = 207,798.66
  5. Step 5: Solve for x
    x = 207,798.66/708.52
  6. Step 6: Final answer
    x = 293.29

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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.