Home / 1,396,391.40-2,093,204.70-685,837.80

Finding the Fourth Proportional to 1,396,391.40, 2,093,204.70 and 685,837.80

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Solution

The fourth proportional to 1,396,391.40, 2,093,204.70 and 685,837.80 is: 1,028,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,391.40 : 2,093,204.70 = 685,837.80 : x
  2. Step 2: Convert to fraction form
    1,396,391.40/2,093,204.70 = 685,837.80/x
  3. Step 3: Cross multiply
    1,396,391.40x = 2,093,204.70 × 685,837.80
  4. Step 4: Simplify right side
    1,396,391.40x = 1,435,598,906,397.66
  5. Step 5: Solve for x
    x = 1,435,598,906,397.66/1,396,391.40
  6. Step 6: Final answer
    x = 1,028,077.73

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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.