Home / 828,170.80-1,242,256.20-800,614.60

Finding the Fourth Proportional to 828,170.80, 1,242,256.20 and 800,614.60

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Solution

The fourth proportional to 828,170.80, 1,242,256.20 and 800,614.60 is: 1,200,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,170.80 : 1,242,256.20 = 800,614.60 : x
  2. Step 2: Convert to fraction form
    828,170.80/1,242,256.20 = 800,614.60/x
  3. Step 3: Cross multiply
    828,170.80x = 1,242,256.20 × 800,614.60
  4. Step 4: Simplify right side
    828,170.80x = 994,568,450,660.52
  5. Step 5: Solve for x
    x = 994,568,450,660.52/828,170.80
  6. Step 6: Final answer
    x = 1,200,921.90

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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.