Home / 644,716.39-889,481.24-368,872.75

Finding the Fourth Proportional to 644,716.39, 889,481.24 and 368,872.75

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Solution

The fourth proportional to 644,716.39, 889,481.24 and 368,872.75 is: 508,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,716.39 : 889,481.24 = 368,872.75 : x
  2. Step 2: Convert to fraction form
    644,716.39/889,481.24 = 368,872.75/x
  3. Step 3: Cross multiply
    644,716.39x = 889,481.24 × 368,872.75
  4. Step 4: Simplify right side
    644,716.39x = 328,105,389,227.85
  5. Step 5: Solve for x
    x = 328,105,389,227.85/644,716.39
  6. Step 6: Final answer
    x = 508,914.30

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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.