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Finding the Fourth Proportional to 379,795.96, 523,960.12 and 218,612.44

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Solution

The fourth proportional to 379,795.96, 523,960.12 and 218,612.44 is: 301,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,795.96 : 523,960.12 = 218,612.44 : x
  2. Step 2: Convert to fraction form
    379,795.96/523,960.12 = 218,612.44/x
  3. Step 3: Cross multiply
    379,795.96x = 523,960.12 × 218,612.44
  4. Step 4: Simplify right side
    379,795.96x = 114,544,200,295.89
  5. Step 5: Solve for x
    x = 114,544,200,295.89/379,795.96
  6. Step 6: Final answer
    x = 301,594.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.