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Finding the Fourth Proportional to 1,067.32, 1,598.46 and 834.58

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Solution

The fourth proportional to 1,067.32, 1,598.46 and 834.58 is: 1,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.32 : 1,598.46 = 834.58 : x
  2. Step 2: Convert to fraction form
    1,067.32/1,598.46 = 834.58/x
  3. Step 3: Cross multiply
    1,067.32x = 1,598.46 × 834.58
  4. Step 4: Simplify right side
    1,067.32x = 1,334,042.75
  5. Step 5: Solve for x
    x = 1,334,042.75/1,067.32
  6. Step 6: Final answer
    x = 1,249.90

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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.