Home / 3,102,439.28-4,279,617.56-1,861,728.56

Finding the Fourth Proportional to 3,102,439.28, 4,279,617.56 and 1,861,728.56

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Solution

The fourth proportional to 3,102,439.28, 4,279,617.56 and 1,861,728.56 is: 2,568,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102,439.28 : 4,279,617.56 = 1,861,728.56 : x
  2. Step 2: Convert to fraction form
    3,102,439.28/4,279,617.56 = 1,861,728.56/x
  3. Step 3: Cross multiply
    3,102,439.28x = 4,279,617.56 × 1,861,728.56
  4. Step 4: Simplify right side
    3,102,439.28x = 7,967,486,237,329.51
  5. Step 5: Solve for x
    x = 7,967,486,237,329.51/3,102,439.28
  6. Step 6: Final answer
    x = 2,568,136.08

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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.