Home / 1,611,690.80-2,414,620.20-768,383.60

Finding the Fourth Proportional to 1,611,690.80, 2,414,620.20 and 768,383.60

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Solution

The fourth proportional to 1,611,690.80, 2,414,620.20 and 768,383.60 is: 1,151,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,690.80 : 2,414,620.20 = 768,383.60 : x
  2. Step 2: Convert to fraction form
    1,611,690.80/2,414,620.20 = 768,383.60/x
  3. Step 3: Cross multiply
    1,611,690.80x = 2,414,620.20 × 768,383.60
  4. Step 4: Simplify right side
    1,611,690.80x = 1,855,354,561,908.72
  5. Step 5: Solve for x
    x = 1,855,354,561,908.72/1,611,690.80
  6. Step 6: Final answer
    x = 1,151,185.18

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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.