Home / 998,835.71-1,378,055.97-568,811.30

Finding the Fourth Proportional to 998,835.71, 1,378,055.97 and 568,811.30

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Solution

The fourth proportional to 998,835.71, 1,378,055.97 and 568,811.30 is: 784,767.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,835.71 : 1,378,055.97 = 568,811.30 : x
  2. Step 2: Convert to fraction form
    998,835.71/1,378,055.97 = 568,811.30/x
  3. Step 3: Cross multiply
    998,835.71x = 1,378,055.97 × 568,811.30
  4. Step 4: Simplify right side
    998,835.71x = 783,853,800,878.18
  5. Step 5: Solve for x
    x = 783,853,800,878.18/998,835.71
  6. Step 6: Final answer
    x = 784,767.50

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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.