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Finding the Fourth Proportional to 1,067.22, 1,601.10 and 374.04

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Solution

The fourth proportional to 1,067.22, 1,601.10 and 374.04 is: 561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.22 : 1,601.10 = 374.04 : x
  2. Step 2: Convert to fraction form
    1,067.22/1,601.10 = 374.04/x
  3. Step 3: Cross multiply
    1,067.22x = 1,601.10 × 374.04
  4. Step 4: Simplify right side
    1,067.22x = 598,875.44
  5. Step 5: Solve for x
    x = 598,875.44/1,067.22
  6. Step 6: Final answer
    x = 561.15

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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.