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Finding the Fourth Proportional to 807,797.20, 1,211,695.80 and 246,758.80

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Solution

The fourth proportional to 807,797.20, 1,211,695.80 and 246,758.80 is: 370,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,797.20 : 1,211,695.80 = 246,758.80 : x
  2. Step 2: Convert to fraction form
    807,797.20/1,211,695.80 = 246,758.80/x
  3. Step 3: Cross multiply
    807,797.20x = 1,211,695.80 × 246,758.80
  4. Step 4: Simplify right side
    807,797.20x = 298,996,601,573.04
  5. Step 5: Solve for x
    x = 298,996,601,573.04/807,797.20
  6. Step 6: Final answer
    x = 370,138.20

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Similar ratio
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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.