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Finding the Fourth Proportional to 1,067.45, 1,601.18 and 297.95

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Solution

The fourth proportional to 1,067.45, 1,601.18 and 297.95 is: 446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.45 : 1,601.18 = 297.95 : x
  2. Step 2: Convert to fraction form
    1,067.45/1,601.18 = 297.95/x
  3. Step 3: Cross multiply
    1,067.45x = 1,601.18 × 297.95
  4. Step 4: Simplify right side
    1,067.45x = 477,062.09
  5. Step 5: Solve for x
    x = 477,062.09/1,067.45
  6. Step 6: Final answer
    x = 446.92

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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.