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Finding the Fourth Proportional to 1,467.38, 2,202.08 and 543.69

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Solution

The fourth proportional to 1,467.38, 2,202.08 and 543.69 is: 815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.38 : 2,202.08 = 543.69 : x
  2. Step 2: Convert to fraction form
    1,467.38/2,202.08 = 543.69/x
  3. Step 3: Cross multiply
    1,467.38x = 2,202.08 × 543.69
  4. Step 4: Simplify right side
    1,467.38x = 1,197,246.16
  5. Step 5: Solve for x
    x = 1,197,246.16/1,467.38
  6. Step 6: Final answer
    x = 815.91

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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.