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Finding the Fourth Proportional to 1,467.51, 2,202.12 and 543.69

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Solution

The fourth proportional to 1,467.51, 2,202.12 and 543.69 is: 815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.51 : 2,202.12 = 543.69 : x
  2. Step 2: Convert to fraction form
    1,467.51/2,202.12 = 543.69/x
  3. Step 3: Cross multiply
    1,467.51x = 2,202.12 × 543.69
  4. Step 4: Simplify right side
    1,467.51x = 1,197,270.62
  5. Step 5: Solve for x
    x = 1,197,270.62/1,467.51
  6. Step 6: Final answer
    x = 815.85

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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.