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Finding the Fourth Proportional to 966.36, 1,333.44 and 573.54

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Solution

The fourth proportional to 966.36, 1,333.44 and 573.54 is: 791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.36 : 1,333.44 = 573.54 : x
  2. Step 2: Convert to fraction form
    966.36/1,333.44 = 573.54/x
  3. Step 3: Cross multiply
    966.36x = 1,333.44 × 573.54
  4. Step 4: Simplify right side
    966.36x = 764,781.18
  5. Step 5: Solve for x
    x = 764,781.18/966.36
  6. Step 6: Final answer
    x = 791.40

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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.