Home / 448,412.79-672,621.61-132,872.43

Finding the Fourth Proportional to 448,412.79, 672,621.61 and 132,872.43

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Solution

The fourth proportional to 448,412.79, 672,621.61 and 132,872.43 is: 199,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,412.79 : 672,621.61 = 132,872.43 : x
  2. Step 2: Convert to fraction form
    448,412.79/672,621.61 = 132,872.43/x
  3. Step 3: Cross multiply
    448,412.79x = 672,621.61 × 132,872.43
  4. Step 4: Simplify right side
    448,412.79x = 89,372,867,791.21
  5. Step 5: Solve for x
    x = 89,372,867,791.21/448,412.79
  6. Step 6: Final answer
    x = 199,309.36

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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.