Home / 1,691,738.06-2,538,867.65-680,867.78

Finding the Fourth Proportional to 1,691,738.06, 2,538,867.65 and 680,867.78

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Solution

The fourth proportional to 1,691,738.06, 2,538,867.65 and 680,867.78 is: 1,021,809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,738.06 : 2,538,867.65 = 680,867.78 : x
  2. Step 2: Convert to fraction form
    1,691,738.06/2,538,867.65 = 680,867.78/x
  3. Step 3: Cross multiply
    1,691,738.06x = 2,538,867.65 × 680,867.78
  4. Step 4: Simplify right side
    1,691,738.06x = 1,728,633,164,470.64
  5. Step 5: Solve for x
    x = 1,728,633,164,470.64/1,691,738.06
  6. Step 6: Final answer
    x = 1,021,809.00

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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.