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Finding the Fourth Proportional to 394,611.06, 544,562.52 and 213,323.10

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Solution

The fourth proportional to 394,611.06, 544,562.52 and 213,323.10 is: 294,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,611.06 : 544,562.52 = 213,323.10 : x
  2. Step 2: Convert to fraction form
    394,611.06/544,562.52 = 213,323.10/x
  3. Step 3: Cross multiply
    394,611.06x = 544,562.52 × 213,323.10
  4. Step 4: Simplify right side
    394,611.06x = 116,167,764,910.21
  5. Step 5: Solve for x
    x = 116,167,764,910.21/394,611.06
  6. Step 6: Final answer
    x = 294,385.48

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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.