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Finding the Fourth Proportional to 1,067.36, 1,601.15 and 374.04

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Solution

The fourth proportional to 1,067.36, 1,601.15 and 374.04 is: 561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.36 : 1,601.15 = 374.04 : x
  2. Step 2: Convert to fraction form
    1,067.36/1,601.15 = 374.04/x
  3. Step 3: Cross multiply
    1,067.36x = 1,601.15 × 374.04
  4. Step 4: Simplify right side
    1,067.36x = 598,892.28
  5. Step 5: Solve for x
    x = 598,892.28/1,067.36
  6. Step 6: Final answer
    x = 561.10

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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.