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Finding the Fourth Proportional to 966.38, 1,333.46 and 546.64

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Solution

The fourth proportional to 966.38, 1,333.46 and 546.64 is: 754.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.38 : 1,333.46 = 546.64 : x
  2. Step 2: Convert to fraction form
    966.38/1,333.46 = 546.64/x
  3. Step 3: Cross multiply
    966.38x = 1,333.46 × 546.64
  4. Step 4: Simplify right side
    966.38x = 728,922.57
  5. Step 5: Solve for x
    x = 728,922.57/966.38
  6. Step 6: Final answer
    x = 754.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.