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Finding the Fourth Proportional to 708.68, 1,062.67 and 246.48

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Solution

The fourth proportional to 708.68, 1,062.67 and 246.48 is: 369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.68 : 1,062.67 = 246.48 : x
  2. Step 2: Convert to fraction form
    708.68/1,062.67 = 246.48/x
  3. Step 3: Cross multiply
    708.68x = 1,062.67 × 246.48
  4. Step 4: Simplify right side
    708.68x = 261,926.90
  5. Step 5: Solve for x
    x = 261,926.90/708.68
  6. Step 6: Final answer
    x = 369.60

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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.