Home / 812,936.93-1,121,805.32-445,341.24

Finding the Fourth Proportional to 812,936.93, 1,121,805.32 and 445,341.24

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Solution

The fourth proportional to 812,936.93, 1,121,805.32 and 445,341.24 is: 614,544.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,936.93 : 1,121,805.32 = 445,341.24 : x
  2. Step 2: Convert to fraction form
    812,936.93/1,121,805.32 = 445,341.24/x
  3. Step 3: Cross multiply
    812,936.93x = 1,121,805.32 × 445,341.24
  4. Step 4: Simplify right side
    812,936.93x = 499,586,170,020.69
  5. Step 5: Solve for x
    x = 499,586,170,020.69/812,936.93
  6. Step 6: Final answer
    x = 614,544.81

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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.