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Finding the Fourth Proportional to 1,067.08, 1,600.74 and 450.67

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Solution

The fourth proportional to 1,067.08, 1,600.74 and 450.67 is: 676.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.08 : 1,600.74 = 450.67 : x
  2. Step 2: Convert to fraction form
    1,067.08/1,600.74 = 450.67/x
  3. Step 3: Cross multiply
    1,067.08x = 1,600.74 × 450.67
  4. Step 4: Simplify right side
    1,067.08x = 721,405.50
  5. Step 5: Solve for x
    x = 721,405.50/1,067.08
  6. Step 6: Final answer
    x = 676.06

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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.