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Finding the Fourth Proportional to 1,168.60, 1,752.36 and 346.66

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Solution

The fourth proportional to 1,168.60, 1,752.36 and 346.66 is: 519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.60 : 1,752.36 = 346.66 : x
  2. Step 2: Convert to fraction form
    1,168.60/1,752.36 = 346.66/x
  3. Step 3: Cross multiply
    1,168.60x = 1,752.36 × 346.66
  4. Step 4: Simplify right side
    1,168.60x = 607,473.12
  5. Step 5: Solve for x
    x = 607,473.12/1,168.60
  6. Step 6: Final answer
    x = 519.83

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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.