Home / 1,093,768.40-1,639,486.20-419,589.20

Finding the Fourth Proportional to 1,093,768.40, 1,639,486.20 and 419,589.20

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Solution

The fourth proportional to 1,093,768.40, 1,639,486.20 and 419,589.20 is: 628,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,768.40 : 1,639,486.20 = 419,589.20 : x
  2. Step 2: Convert to fraction form
    1,093,768.40/1,639,486.20 = 419,589.20/x
  3. Step 3: Cross multiply
    1,093,768.40x = 1,639,486.20 × 419,589.20
  4. Step 4: Simplify right side
    1,093,768.40x = 687,910,703,069.04
  5. Step 5: Solve for x
    x = 687,910,703,069.04/1,093,768.40
  6. Step 6: Final answer
    x = 628,936.35

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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.