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Finding the Fourth Proportional to 950.67, 1,425.78 and 292.46

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Solution

The fourth proportional to 950.67, 1,425.78 and 292.46 is: 438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.67 : 1,425.78 = 292.46 : x
  2. Step 2: Convert to fraction form
    950.67/1,425.78 = 292.46/x
  3. Step 3: Cross multiply
    950.67x = 1,425.78 × 292.46
  4. Step 4: Simplify right side
    950.67x = 416,976.49
  5. Step 5: Solve for x
    x = 416,976.49/950.67
  6. Step 6: Final answer
    x = 438.61

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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.