Home / 809,982.62-1,117,786.74-447,405.56

Finding the Fourth Proportional to 809,982.62, 1,117,786.74 and 447,405.56

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Solution

The fourth proportional to 809,982.62, 1,117,786.74 and 447,405.56 is: 617,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,982.62 : 1,117,786.74 = 447,405.56 : x
  2. Step 2: Convert to fraction form
    809,982.62/1,117,786.74 = 447,405.56/x
  3. Step 3: Cross multiply
    809,982.62x = 1,117,786.74 × 447,405.56
  4. Step 4: Simplify right side
    809,982.62x = 500,104,002,370.27
  5. Step 5: Solve for x
    x = 500,104,002,370.27/809,982.62
  6. Step 6: Final answer
    x = 617,425.60

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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.