Home / 445,131.70-613,942.68-383,147.71

Finding the Fourth Proportional to 445,131.70, 613,942.68 and 383,147.71

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Solution

The fourth proportional to 445,131.70, 613,942.68 and 383,147.71 is: 528,451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,131.70 : 613,942.68 = 383,147.71 : x
  2. Step 2: Convert to fraction form
    445,131.70/613,942.68 = 383,147.71/x
  3. Step 3: Cross multiply
    445,131.70x = 613,942.68 × 383,147.71
  4. Step 4: Simplify right side
    445,131.70x = 235,230,728,843.55
  5. Step 5: Solve for x
    x = 235,230,728,843.55/445,131.70
  6. Step 6: Final answer
    x = 528,451.99

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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.