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Finding the Fourth Proportional to 1,467.40, 2,197.68 and 889.24

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Solution

The fourth proportional to 1,467.40, 2,197.68 and 889.24 is: 1,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.40 : 2,197.68 = 889.24 : x
  2. Step 2: Convert to fraction form
    1,467.40/2,197.68 = 889.24/x
  3. Step 3: Cross multiply
    1,467.40x = 2,197.68 × 889.24
  4. Step 4: Simplify right side
    1,467.40x = 1,954,264.96
  5. Step 5: Solve for x
    x = 1,954,264.96/1,467.40
  6. Step 6: Final answer
    x = 1,331.79

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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.