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Finding the Fourth Proportional to 958.44, 1,436.30 and 741

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Solution

The fourth proportional to 958.44, 1,436.30 and 741 is: 1,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.44 : 1,436.30 = 741 : x
  2. Step 2: Convert to fraction form
    958.44/1,436.30 = 741/x
  3. Step 3: Cross multiply
    958.44x = 1,436.30 × 741
  4. Step 4: Simplify right side
    958.44x = 1,064,298.30
  5. Step 5: Solve for x
    x = 1,064,298.30/958.44
  6. Step 6: Final answer
    x = 1,110.45

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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.