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Finding the Fourth Proportional to 394,864.16, 544,912.58 and 213,576.10

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Solution

The fourth proportional to 394,864.16, 544,912.58 and 213,576.10 is: 294,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,864.16 : 544,912.58 = 213,576.10 : x
  2. Step 2: Convert to fraction form
    394,864.16/544,912.58 = 213,576.10/x
  3. Step 3: Cross multiply
    394,864.16x = 544,912.58 × 213,576.10
  4. Step 4: Simplify right side
    394,864.16x = 116,380,303,677.34
  5. Step 5: Solve for x
    x = 116,380,303,677.34/394,864.16
  6. Step 6: Final answer
    x = 294,735.04

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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.