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Finding the Fourth Proportional to 1,173.35, 1,760.25 and 351.56

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Solution

The fourth proportional to 1,173.35, 1,760.25 and 351.56 is: 527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.35 : 1,760.25 = 351.56 : x
  2. Step 2: Convert to fraction form
    1,173.35/1,760.25 = 351.56/x
  3. Step 3: Cross multiply
    1,173.35x = 1,760.25 × 351.56
  4. Step 4: Simplify right side
    1,173.35x = 618,824.69
  5. Step 5: Solve for x
    x = 618,824.69/1,173.35
  6. Step 6: Final answer
    x = 527.40

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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.