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Finding the Fourth Proportional to 379,794.68, 524,181.11 and 218,742.94

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Solution

The fourth proportional to 379,794.68, 524,181.11 and 218,742.94 is: 301,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,794.68 : 524,181.11 = 218,742.94 : x
  2. Step 2: Convert to fraction form
    379,794.68/524,181.11 = 218,742.94/x
  3. Step 3: Cross multiply
    379,794.68x = 524,181.11 × 218,742.94
  4. Step 4: Simplify right side
    379,794.68x = 114,660,917,093.86
  5. Step 5: Solve for x
    x = 114,660,917,093.86/379,794.68
  6. Step 6: Final answer
    x = 301,902.38

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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.