Home / 681,936.20-1,022,867.32-208,621.60

Finding the Fourth Proportional to 681,936.20, 1,022,867.32 and 208,621.60

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Solution

The fourth proportional to 681,936.20, 1,022,867.32 and 208,621.60 is: 312,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,936.20 : 1,022,867.32 = 208,621.60 : x
  2. Step 2: Convert to fraction form
    681,936.20/1,022,867.32 = 208,621.60/x
  3. Step 3: Cross multiply
    681,936.20x = 1,022,867.32 × 208,621.60
  4. Step 4: Simplify right side
    681,936.20x = 213,392,216,886.11
  5. Step 5: Solve for x
    x = 213,392,216,886.11/681,936.20
  6. Step 6: Final answer
    x = 312,921.09

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1.5x scale

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.