Home / 412,588.23-618,754.18-199,223.49

Finding the Fourth Proportional to 412,588.23, 618,754.18 and 199,223.49

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Solution

The fourth proportional to 412,588.23, 618,754.18 and 199,223.49 is: 298,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,588.23 : 618,754.18 = 199,223.49 : x
  2. Step 2: Convert to fraction form
    412,588.23/618,754.18 = 199,223.49/x
  3. Step 3: Cross multiply
    412,588.23x = 618,754.18 × 199,223.49
  4. Step 4: Simplify right side
    412,588.23x = 123,270,363,606.45
  5. Step 5: Solve for x
    x = 123,270,363,606.45/412,588.23
  6. Step 6: Final answer
    x = 298,773.34

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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.