Home / 969,255.20-1,454,113.20-408,000.80

Finding the Fourth Proportional to 969,255.20, 1,454,113.20 and 408,000.80

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Solution

The fourth proportional to 969,255.20, 1,454,113.20 and 408,000.80 is: 612,098.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,255.20 : 1,454,113.20 = 408,000.80 : x
  2. Step 2: Convert to fraction form
    969,255.20/1,454,113.20 = 408,000.80/x
  3. Step 3: Cross multiply
    969,255.20x = 1,454,113.20 × 408,000.80
  4. Step 4: Simplify right side
    969,255.20x = 593,279,348,890.56
  5. Step 5: Solve for x
    x = 593,279,348,890.56/969,255.20
  6. Step 6: Final answer
    x = 612,098.19

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Double scale
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Similar ratio
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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.