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Finding the Fourth Proportional to 394,245.73, 544,059.33 and 212,957.66

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Solution

The fourth proportional to 394,245.73, 544,059.33 and 212,957.66 is: 293,881.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,245.73 : 544,059.33 = 212,957.66 : x
  2. Step 2: Convert to fraction form
    394,245.73/544,059.33 = 212,957.66/x
  3. Step 3: Cross multiply
    394,245.73x = 544,059.33 × 212,957.66
  4. Step 4: Simplify right side
    394,245.73x = 115,861,602,379.53
  5. Step 5: Solve for x
    x = 115,861,602,379.53/394,245.73
  6. Step 6: Final answer
    x = 293,881.69

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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.