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Finding the Fourth Proportional to 1,173.38, 1,759.82 and 351.44

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Solution

The fourth proportional to 1,173.38, 1,759.82 and 351.44 is: 527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.38 : 1,759.82 = 351.44 : x
  2. Step 2: Convert to fraction form
    1,173.38/1,759.82 = 351.44/x
  3. Step 3: Cross multiply
    1,173.38x = 1,759.82 × 351.44
  4. Step 4: Simplify right side
    1,173.38x = 618,460.58
  5. Step 5: Solve for x
    x = 618,460.58/1,173.38
  6. Step 6: Final answer
    x = 527.08

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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.