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Finding the Fourth Proportional to 1,173.85, 1,760.25 and 351.97

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Solution

The fourth proportional to 1,173.85, 1,760.25 and 351.97 is: 527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.85 : 1,760.25 = 351.97 : x
  2. Step 2: Convert to fraction form
    1,173.85/1,760.25 = 351.97/x
  3. Step 3: Cross multiply
    1,173.85x = 1,760.25 × 351.97
  4. Step 4: Simplify right side
    1,173.85x = 619,555.19
  5. Step 5: Solve for x
    x = 619,555.19/1,173.85
  6. Step 6: Final answer
    x = 527.80

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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.