Home / 721,673.96-1,082,515.46-189,190.22

Finding the Fourth Proportional to 721,673.96, 1,082,515.46 and 189,190.22

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Solution

The fourth proportional to 721,673.96, 1,082,515.46 and 189,190.22 is: 283,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,673.96 : 1,082,515.46 = 189,190.22 : x
  2. Step 2: Convert to fraction form
    721,673.96/1,082,515.46 = 189,190.22/x
  3. Step 3: Cross multiply
    721,673.96x = 1,082,515.46 × 189,190.22
  4. Step 4: Simplify right side
    721,673.96x = 204,801,331,672.27
  5. Step 5: Solve for x
    x = 204,801,331,672.27/721,673.96
  6. Step 6: Final answer
    x = 283,786.51

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1.5x scale

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.