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Finding the Fourth Proportional to 1,174.02, 1,760.22 and 741.48

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Solution

The fourth proportional to 1,174.02, 1,760.22 and 741.48 is: 1,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.02 : 1,760.22 = 741.48 : x
  2. Step 2: Convert to fraction form
    1,174.02/1,760.22 = 741.48/x
  3. Step 3: Cross multiply
    1,174.02x = 1,760.22 × 741.48
  4. Step 4: Simplify right side
    1,174.02x = 1,305,167.93
  5. Step 5: Solve for x
    x = 1,305,167.93/1,174.02
  6. Step 6: Final answer
    x = 1,111.71

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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.