Home / 699,983.19-965,965.77-394,058.88

Finding the Fourth Proportional to 699,983.19, 965,965.77 and 394,058.88

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Solution

The fourth proportional to 699,983.19, 965,965.77 and 394,058.88 is: 543,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,983.19 : 965,965.77 = 394,058.88 : x
  2. Step 2: Convert to fraction form
    699,983.19/965,965.77 = 394,058.88/x
  3. Step 3: Cross multiply
    699,983.19x = 965,965.77 × 394,058.88
  4. Step 4: Simplify right side
    699,983.19x = 380,647,389,444.54
  5. Step 5: Solve for x
    x = 380,647,389,444.54/699,983.19
  6. Step 6: Final answer
    x = 543,795.04

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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.