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Finding the Fourth Proportional to 275,280.15, 412,920.23 and 275,280.15

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Solution

The fourth proportional to 275,280.15, 412,920.23 and 275,280.15 is: 412,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,280.15 : 412,920.23 = 275,280.15 : x
  2. Step 2: Convert to fraction form
    275,280.15/412,920.23 = 275,280.15/x
  3. Step 3: Cross multiply
    275,280.15x = 412,920.23 × 275,280.15
  4. Step 4: Simplify right side
    275,280.15x = 113,668,741,476.03
  5. Step 5: Solve for x
    x = 113,668,741,476.03/275,280.15
  6. Step 6: Final answer
    x = 412,920.23

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1.5x scale

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.