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Finding the Fourth Proportional to 1,469.04, 2,203.60 and 443.04

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Solution

The fourth proportional to 1,469.04, 2,203.60 and 443.04 is: 664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.04 : 2,203.60 = 443.04 : x
  2. Step 2: Convert to fraction form
    1,469.04/2,203.60 = 443.04/x
  3. Step 3: Cross multiply
    1,469.04x = 2,203.60 × 443.04
  4. Step 4: Simplify right side
    1,469.04x = 976,282.94
  5. Step 5: Solve for x
    x = 976,282.94/1,469.04
  6. Step 6: Final answer
    x = 664.57

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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.