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Finding the Fourth Proportional to 652,856.20, 978,506.70 and 273,776.20

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Solution

The fourth proportional to 652,856.20, 978,506.70 and 273,776.20 is: 410,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,856.20 : 978,506.70 = 273,776.20 : x
  2. Step 2: Convert to fraction form
    652,856.20/978,506.70 = 273,776.20/x
  3. Step 3: Cross multiply
    652,856.20x = 978,506.70 × 273,776.20
  4. Step 4: Simplify right side
    652,856.20x = 267,891,846,000.54
  5. Step 5: Solve for x
    x = 267,891,846,000.54/652,856.20
  6. Step 6: Final answer
    x = 410,338.21

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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.