Home / 443,736.01-663,627.61-394,138.09

Finding the Fourth Proportional to 443,736.01, 663,627.61 and 394,138.09

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Solution

The fourth proportional to 443,736.01, 663,627.61 and 394,138.09 is: 589,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,736.01 : 663,627.61 = 394,138.09 : x
  2. Step 2: Convert to fraction form
    443,736.01/663,627.61 = 394,138.09/x
  3. Step 3: Cross multiply
    443,736.01x = 663,627.61 × 394,138.09
  4. Step 4: Simplify right side
    443,736.01x = 261,560,918,676.67
  5. Step 5: Solve for x
    x = 261,560,918,676.67/443,736.01
  6. Step 6: Final answer
    x = 589,451.64

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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.