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Finding the Fourth Proportional to 652,626.20, 978,161.70 and 273,546.20

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Solution

The fourth proportional to 652,626.20, 978,161.70 and 273,546.20 is: 409,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,626.20 : 978,161.70 = 273,546.20 : x
  2. Step 2: Convert to fraction form
    652,626.20/978,161.70 = 273,546.20/x
  3. Step 3: Cross multiply
    652,626.20x = 978,161.70 × 273,546.20
  4. Step 4: Simplify right side
    652,626.20x = 267,572,416,020.54
  5. Step 5: Solve for x
    x = 267,572,416,020.54/652,626.20
  6. Step 6: Final answer
    x = 409,993.37

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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.