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Finding the Fourth Proportional to 394,616.06, 544,569.42 and 213,328.10

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Solution

The fourth proportional to 394,616.06, 544,569.42 and 213,328.10 is: 294,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,616.06 : 544,569.42 = 213,328.10 : x
  2. Step 2: Convert to fraction form
    394,616.06/544,569.42 = 213,328.10/x
  3. Step 3: Cross multiply
    394,616.06x = 544,569.42 × 213,328.10
  4. Step 4: Simplify right side
    394,616.06x = 116,171,959,686.70
  5. Step 5: Solve for x
    x = 116,171,959,686.70/394,616.06
  6. Step 6: Final answer
    x = 294,392.38

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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.