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Finding the Fourth Proportional to 1,174.25, 1,760.03 and 557.08

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Solution

The fourth proportional to 1,174.25, 1,760.03 and 557.08 is: 834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.25 : 1,760.03 = 557.08 : x
  2. Step 2: Convert to fraction form
    1,174.25/1,760.03 = 557.08/x
  3. Step 3: Cross multiply
    1,174.25x = 1,760.03 × 557.08
  4. Step 4: Simplify right side
    1,174.25x = 980,472.42
  5. Step 5: Solve for x
    x = 980,472.42/1,174.25
  6. Step 6: Final answer
    x = 834.98

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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.