Home / 809,512.68-1,117,120.31-446,928.74

Finding the Fourth Proportional to 809,512.68, 1,117,120.31 and 446,928.74

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Solution

The fourth proportional to 809,512.68, 1,117,120.31 and 446,928.74 is: 616,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,512.68 : 1,117,120.31 = 446,928.74 : x
  2. Step 2: Convert to fraction form
    809,512.68/1,117,120.31 = 446,928.74/x
  3. Step 3: Cross multiply
    809,512.68x = 1,117,120.31 × 446,928.74
  4. Step 4: Simplify right side
    809,512.68x = 499,273,170,621.65
  5. Step 5: Solve for x
    x = 499,273,170,621.65/809,512.68
  6. Step 6: Final answer
    x = 616,757.69

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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.