Home / 1,679,772.80-2,519,659.20-839,964.80

Finding the Fourth Proportional to 1,679,772.80, 2,519,659.20 and 839,964.80

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Solution

The fourth proportional to 1,679,772.80, 2,519,659.20 and 839,964.80 is: 1,259,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,772.80 : 2,519,659.20 = 839,964.80 : x
  2. Step 2: Convert to fraction form
    1,679,772.80/2,519,659.20 = 839,964.80/x
  3. Step 3: Cross multiply
    1,679,772.80x = 2,519,659.20 × 839,964.80
  4. Step 4: Simplify right side
    1,679,772.80x = 2,116,425,035,996.16
  5. Step 5: Solve for x
    x = 2,116,425,035,996.16/1,679,772.80
  6. Step 6: Final answer
    x = 1,259,947.20

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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.