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Finding the Fourth Proportional to 956.61, 1,434.78 and 593.73

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Solution

The fourth proportional to 956.61, 1,434.78 and 593.73 is: 890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.61 : 1,434.78 = 593.73 : x
  2. Step 2: Convert to fraction form
    956.61/1,434.78 = 593.73/x
  3. Step 3: Cross multiply
    956.61x = 1,434.78 × 593.73
  4. Step 4: Simplify right side
    956.61x = 851,871.93
  5. Step 5: Solve for x
    x = 851,871.93/956.61
  6. Step 6: Final answer
    x = 890.51

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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.