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Finding the Fourth Proportional to 951, 1,426.74 and 267

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Solution

The fourth proportional to 951, 1,426.74 and 267 is: 400.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    951 : 1,426.74 = 267 : x
  2. Step 2: Convert to fraction form
    951/1,426.74 = 267/x
  3. Step 3: Cross multiply
    951x = 1,426.74 × 267
  4. Step 4: Simplify right side
    951x = 380,939.58
  5. Step 5: Solve for x
    x = 380,939.58/951
  6. Step 6: Final answer
    x = 400.57

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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.