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Finding the Fourth Proportional to 1,504.13, 2,256.17 and 408.49

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Solution

The fourth proportional to 1,504.13, 2,256.17 and 408.49 is: 612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.13 : 2,256.17 = 408.49 : x
  2. Step 2: Convert to fraction form
    1,504.13/2,256.17 = 408.49/x
  3. Step 3: Cross multiply
    1,504.13x = 2,256.17 × 408.49
  4. Step 4: Simplify right side
    1,504.13x = 921,618.26
  5. Step 5: Solve for x
    x = 921,618.26/1,504.13
  6. Step 6: Final answer
    x = 612.73

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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.