Home / 812,859.03-1,121,745.27-445,349.22

Finding the Fourth Proportional to 812,859.03, 1,121,745.27 and 445,349.22

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Solution

The fourth proportional to 812,859.03, 1,121,745.27 and 445,349.22 is: 614,581.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,859.03 : 1,121,745.27 = 445,349.22 : x
  2. Step 2: Convert to fraction form
    812,859.03/1,121,745.27 = 445,349.22/x
  3. Step 3: Cross multiply
    812,859.03x = 1,121,745.27 × 445,349.22
  4. Step 4: Simplify right side
    812,859.03x = 499,568,381,033.19
  5. Step 5: Solve for x
    x = 499,568,381,033.19/812,859.03
  6. Step 6: Final answer
    x = 614,581.82

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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.