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Finding the Fourth Proportional to 969,692.20, 1,454,019.90 and 408,092.20

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Solution

The fourth proportional to 969,692.20, 1,454,019.90 and 408,092.20 is: 611,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,692.20 : 1,454,019.90 = 408,092.20 : x
  2. Step 2: Convert to fraction form
    969,692.20/1,454,019.90 = 408,092.20/x
  3. Step 3: Cross multiply
    969,692.20x = 1,454,019.90 × 408,092.20
  4. Step 4: Simplify right side
    969,692.20x = 593,374,179,834.78
  5. Step 5: Solve for x
    x = 593,374,179,834.78/969,692.20
  6. Step 6: Final answer
    x = 611,920.13

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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.