Home / 1,691,940.96-2,335,028.22-928,143.36

Finding the Fourth Proportional to 1,691,940.96, 2,335,028.22 and 928,143.36

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Solution

The fourth proportional to 1,691,940.96, 2,335,028.22 and 928,143.36 is: 1,280,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,940.96 : 2,335,028.22 = 928,143.36 : x
  2. Step 2: Convert to fraction form
    1,691,940.96/2,335,028.22 = 928,143.36/x
  3. Step 3: Cross multiply
    1,691,940.96x = 2,335,028.22 × 928,143.36
  4. Step 4: Simplify right side
    1,691,940.96x = 2,167,240,937,805.62
  5. Step 5: Solve for x
    x = 2,167,240,937,805.62/1,691,940.96
  6. Step 6: Final answer
    x = 1,280,919.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.