Home / 819,561.88-1,131,144.78-475,617.88

Finding the Fourth Proportional to 819,561.88, 1,131,144.78 and 475,617.88

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Solution

The fourth proportional to 819,561.88, 1,131,144.78 and 475,617.88 is: 656,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,561.88 : 1,131,144.78 = 475,617.88 : x
  2. Step 2: Convert to fraction form
    819,561.88/1,131,144.78 = 475,617.88/x
  3. Step 3: Cross multiply
    819,561.88x = 1,131,144.78 × 475,617.88
  4. Step 4: Simplify right side
    819,561.88x = 537,992,682,236.67
  5. Step 5: Solve for x
    x = 537,992,682,236.67/819,561.88
  6. Step 6: Final answer
    x = 656,439.37

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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.