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Finding the Fourth Proportional to 376,311.70, 564,565.92 and 218,388.34

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Solution

The fourth proportional to 376,311.70, 564,565.92 and 218,388.34 is: 327,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,311.70 : 564,565.92 = 218,388.34 : x
  2. Step 2: Convert to fraction form
    376,311.70/564,565.92 = 218,388.34/x
  3. Step 3: Cross multiply
    376,311.70x = 564,565.92 × 218,388.34
  4. Step 4: Simplify right side
    376,311.70x = 123,294,614,089.37
  5. Step 5: Solve for x
    x = 123,294,614,089.37/376,311.70
  6. Step 6: Final answer
    x = 327,639.60

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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.