Home / 1,940,246.25-2,678,649.66-1,287,757.11

Finding the Fourth Proportional to 1,940,246.25, 2,678,649.66 and 1,287,757.11

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Solution

The fourth proportional to 1,940,246.25, 2,678,649.66 and 1,287,757.11 is: 1,777,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,246.25 : 2,678,649.66 = 1,287,757.11 : x
  2. Step 2: Convert to fraction form
    1,940,246.25/2,678,649.66 = 1,287,757.11/x
  3. Step 3: Cross multiply
    1,940,246.25x = 2,678,649.66 × 1,287,757.11
  4. Step 4: Simplify right side
    1,940,246.25x = 3,449,450,144,864.08
  5. Step 5: Solve for x
    x = 3,449,450,144,864.08/1,940,246.25
  6. Step 6: Final answer
    x = 1,777,841.42

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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.