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Finding the Fourth Proportional to 966.36, 1,333.72 and 573.48

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Solution

The fourth proportional to 966.36, 1,333.72 and 573.48 is: 791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.36 : 1,333.72 = 573.48 : x
  2. Step 2: Convert to fraction form
    966.36/1,333.72 = 573.48/x
  3. Step 3: Cross multiply
    966.36x = 1,333.72 × 573.48
  4. Step 4: Simplify right side
    966.36x = 764,861.75
  5. Step 5: Solve for x
    x = 764,861.75/966.36
  6. Step 6: Final answer
    x = 791.49

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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.