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Finding the Fourth Proportional to 1,168.88, 1,753.48 and 347.22

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Solution

The fourth proportional to 1,168.88, 1,753.48 and 347.22 is: 520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.88 : 1,753.48 = 347.22 : x
  2. Step 2: Convert to fraction form
    1,168.88/1,753.48 = 347.22/x
  3. Step 3: Cross multiply
    1,168.88x = 1,753.48 × 347.22
  4. Step 4: Simplify right side
    1,168.88x = 608,843.33
  5. Step 5: Solve for x
    x = 608,843.33/1,168.88
  6. Step 6: Final answer
    x = 520.88

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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.