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Finding the Fourth Proportional to 958.23, 1,436.13 and 698.22

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Solution

The fourth proportional to 958.23, 1,436.13 and 698.22 is: 1,046.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.23 : 1,436.13 = 698.22 : x
  2. Step 2: Convert to fraction form
    958.23/1,436.13 = 698.22/x
  3. Step 3: Cross multiply
    958.23x = 1,436.13 × 698.22
  4. Step 4: Simplify right side
    958.23x = 1,002,734.69
  5. Step 5: Solve for x
    x = 1,002,734.69/958.23
  6. Step 6: Final answer
    x = 1,046.44

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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.