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Finding the Fourth Proportional to 376,306.70, 564,558.42 and 218,383.34

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Solution

The fourth proportional to 376,306.70, 564,558.42 and 218,383.34 is: 327,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,306.70 : 564,558.42 = 218,383.34 : x
  2. Step 2: Convert to fraction form
    376,306.70/564,558.42 = 218,383.34/x
  3. Step 3: Cross multiply
    376,306.70x = 564,558.42 × 218,383.34
  4. Step 4: Simplify right side
    376,306.70x = 123,290,153,384.72
  5. Step 5: Solve for x
    x = 123,290,153,384.72/376,306.70
  6. Step 6: Final answer
    x = 327,632.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.