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Finding the Fourth Proportional to 952.34, 1,426.88 and 769.82

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Solution

The fourth proportional to 952.34, 1,426.88 and 769.82 is: 1,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.34 : 1,426.88 = 769.82 : x
  2. Step 2: Convert to fraction form
    952.34/1,426.88 = 769.82/x
  3. Step 3: Cross multiply
    952.34x = 1,426.88 × 769.82
  4. Step 4: Simplify right side
    952.34x = 1,098,440.76
  5. Step 5: Solve for x
    x = 1,098,440.76/952.34
  6. Step 6: Final answer
    x = 1,153.41

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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.