Home / 405,905.41-608,845.55-192,826.71

Finding the Fourth Proportional to 405,905.41, 608,845.55 and 192,826.71

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Solution

The fourth proportional to 405,905.41, 608,845.55 and 192,826.71 is: 289,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,905.41 : 608,845.55 = 192,826.71 : x
  2. Step 2: Convert to fraction form
    405,905.41/608,845.55 = 192,826.71/x
  3. Step 3: Cross multiply
    405,905.41x = 608,845.55 × 192,826.71
  4. Step 4: Simplify right side
    405,905.41x = 117,401,681,260.41
  5. Step 5: Solve for x
    x = 117,401,681,260.41/405,905.41
  6. Step 6: Final answer
    x = 289,234.09

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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.