Home / 809,824.32-1,117,566-447,257.39

Finding the Fourth Proportional to 809,824.32, 1,117,566 and 447,257.39

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Solution

The fourth proportional to 809,824.32, 1,117,566 and 447,257.39 is: 617,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,824.32 : 1,117,566 = 447,257.39 : x
  2. Step 2: Convert to fraction form
    809,824.32/1,117,566 = 447,257.39/x
  3. Step 3: Cross multiply
    809,824.32x = 1,117,566 × 447,257.39
  4. Step 4: Simplify right side
    809,824.32x = 499,839,646,724.91
  5. Step 5: Solve for x
    x = 499,839,646,724.91/809,824.32
  6. Step 6: Final answer
    x = 617,219.85

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1.5x scale

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.