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Finding the Fourth Proportional to 1,467.20, 2,201.04 and 543

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Solution

The fourth proportional to 1,467.20, 2,201.04 and 543 is: 814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.20 : 2,201.04 = 543 : x
  2. Step 2: Convert to fraction form
    1,467.20/2,201.04 = 543/x
  3. Step 3: Cross multiply
    1,467.20x = 2,201.04 × 543
  4. Step 4: Simplify right side
    1,467.20x = 1,195,164.72
  5. Step 5: Solve for x
    x = 1,195,164.72/1,467.20
  6. Step 6: Final answer
    x = 814.59

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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.