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Finding the Fourth Proportional to 966.57, 1,333.79 and 593.39

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Solution

The fourth proportional to 966.57, 1,333.79 and 593.39 is: 818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.57 : 1,333.79 = 593.39 : x
  2. Step 2: Convert to fraction form
    966.57/1,333.79 = 593.39/x
  3. Step 3: Cross multiply
    966.57x = 1,333.79 × 593.39
  4. Step 4: Simplify right side
    966.57x = 791,448.01
  5. Step 5: Solve for x
    x = 791,448.01/966.57
  6. Step 6: Final answer
    x = 818.82

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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.