Home / 1,408,194-2,112,553.94-639,745.66

Finding the Fourth Proportional to 1,408,194, 2,112,553.94 and 639,745.66

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Solution

The fourth proportional to 1,408,194, 2,112,553.94 and 639,745.66 is: 959,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,194 : 2,112,553.94 = 639,745.66 : x
  2. Step 2: Convert to fraction form
    1,408,194/2,112,553.94 = 639,745.66/x
  3. Step 3: Cross multiply
    1,408,194x = 2,112,553.94 × 639,745.66
  4. Step 4: Simplify right side
    1,408,194x = 1,351,497,214,630.90
  5. Step 5: Solve for x
    x = 1,351,497,214,630.90/1,408,194
  6. Step 6: Final answer
    x = 959,737.94

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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.