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Finding the Fourth Proportional to 1,067.95, 1,602.34 and 374.70

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Solution

The fourth proportional to 1,067.95, 1,602.34 and 374.70 is: 562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.95 : 1,602.34 = 374.70 : x
  2. Step 2: Convert to fraction form
    1,067.95/1,602.34 = 374.70/x
  3. Step 3: Cross multiply
    1,067.95x = 1,602.34 × 374.70
  4. Step 4: Simplify right side
    1,067.95x = 600,396.80
  5. Step 5: Solve for x
    x = 600,396.80/1,067.95
  6. Step 6: Final answer
    x = 562.20

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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.