Home / 1,517,919.60-2,279,503.80-809,331.60

Finding the Fourth Proportional to 1,517,919.60, 2,279,503.80 and 809,331.60

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Solution

The fourth proportional to 1,517,919.60, 2,279,503.80 and 809,331.60 is: 1,215,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,919.60 : 2,279,503.80 = 809,331.60 : x
  2. Step 2: Convert to fraction form
    1,517,919.60/2,279,503.80 = 809,331.60/x
  3. Step 3: Cross multiply
    1,517,919.60x = 2,279,503.80 × 809,331.60
  4. Step 4: Simplify right side
    1,517,919.60x = 1,844,874,457,660.08
  5. Step 5: Solve for x
    x = 1,844,874,457,660.08/1,517,919.60
  6. Step 6: Final answer
    x = 1,215,396.69

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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.