Home / 405,905.66-608,845.93-192,826.96

Finding the Fourth Proportional to 405,905.66, 608,845.93 and 192,826.96

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Solution

The fourth proportional to 405,905.66, 608,845.93 and 192,826.96 is: 289,234.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,905.66 : 608,845.93 = 192,826.96 : x
  2. Step 2: Convert to fraction form
    405,905.66/608,845.93 = 192,826.96/x
  3. Step 3: Cross multiply
    405,905.66x = 608,845.93 × 192,826.96
  4. Step 4: Simplify right side
    405,905.66x = 117,401,907,786.09
  5. Step 5: Solve for x
    x = 117,401,907,786.09/405,905.66
  6. Step 6: Final answer
    x = 289,234.47

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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.