Home / 643,384.24-965,083.16-194,109

Finding the Fourth Proportional to 643,384.24, 965,083.16 and 194,109

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Solution

The fourth proportional to 643,384.24, 965,083.16 and 194,109 is: 291,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,384.24 : 965,083.16 = 194,109 : x
  2. Step 2: Convert to fraction form
    643,384.24/965,083.16 = 194,109/x
  3. Step 3: Cross multiply
    643,384.24x = 965,083.16 × 194,109
  4. Step 4: Simplify right side
    643,384.24x = 187,331,327,104.44
  5. Step 5: Solve for x
    x = 187,331,327,104.44/643,384.24
  6. Step 6: Final answer
    x = 291,165.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.