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Finding the Fourth Proportional to 1,167.88, 1,751.20 and 346.04

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Solution

The fourth proportional to 1,167.88, 1,751.20 and 346.04 is: 518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.88 : 1,751.20 = 346.04 : x
  2. Step 2: Convert to fraction form
    1,167.88/1,751.20 = 346.04/x
  3. Step 3: Cross multiply
    1,167.88x = 1,751.20 × 346.04
  4. Step 4: Simplify right side
    1,167.88x = 605,983.52
  5. Step 5: Solve for x
    x = 605,983.52/1,167.88
  6. Step 6: Final answer
    x = 518.88

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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.