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Finding the Fourth Proportional to 2,412.78, 3,621.23 and 952.97

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Solution

The fourth proportional to 2,412.78, 3,621.23 and 952.97 is: 1,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.78 : 3,621.23 = 952.97 : x
  2. Step 2: Convert to fraction form
    2,412.78/3,621.23 = 952.97/x
  3. Step 3: Cross multiply
    2,412.78x = 3,621.23 × 952.97
  4. Step 4: Simplify right side
    2,412.78x = 3,450,900.68
  5. Step 5: Solve for x
    x = 3,450,900.68/2,412.78
  6. Step 6: Final answer
    x = 1,430.26

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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.