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Finding the Fourth Proportional to 394,862.77, 544,910.68 and 213,574.71

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Solution

The fourth proportional to 394,862.77, 544,910.68 and 213,574.71 is: 294,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,862.77 : 544,910.68 = 213,574.71 : x
  2. Step 2: Convert to fraction form
    394,862.77/544,910.68 = 213,574.71/x
  3. Step 3: Cross multiply
    394,862.77x = 544,910.68 × 213,574.71
  4. Step 4: Simplify right side
    394,862.77x = 116,379,140,456.90
  5. Step 5: Solve for x
    x = 116,379,140,456.90/394,862.77
  6. Step 6: Final answer
    x = 294,733.13

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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.