Home / 998,435.71-1,377,687.31-568,661.05

Finding the Fourth Proportional to 998,435.71, 1,377,687.31 and 568,661.05

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Solution

The fourth proportional to 998,435.71, 1,377,687.31 and 568,661.05 is: 784,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,435.71 : 1,377,687.31 = 568,661.05 : x
  2. Step 2: Convert to fraction form
    998,435.71/1,377,687.31 = 568,661.05/x
  3. Step 3: Cross multiply
    998,435.71x = 1,377,687.31 × 568,661.05
  4. Step 4: Simplify right side
    998,435.71x = 783,437,112,276.28
  5. Step 5: Solve for x
    x = 783,437,112,276.28/998,435.71
  6. Step 6: Final answer
    x = 784,664.56

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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.