Home / 445,131.20-613,941.99-383,147.21

Finding the Fourth Proportional to 445,131.20, 613,941.99 and 383,147.21

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Solution

The fourth proportional to 445,131.20, 613,941.99 and 383,147.21 is: 528,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,131.20 : 613,941.99 = 383,147.21 : x
  2. Step 2: Convert to fraction form
    445,131.20/613,941.99 = 383,147.21/x
  3. Step 3: Cross multiply
    445,131.20x = 613,941.99 × 383,147.21
  4. Step 4: Simplify right side
    445,131.20x = 235,230,157,500.64
  5. Step 5: Solve for x
    x = 235,230,157,500.64/445,131.20
  6. Step 6: Final answer
    x = 528,451.30

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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.