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Finding the Fourth Proportional to 474,380.34, 711,558.68 and 221,943.27

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Solution

The fourth proportional to 474,380.34, 711,558.68 and 221,943.27 is: 332,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,380.34 : 711,558.68 = 221,943.27 : x
  2. Step 2: Convert to fraction form
    474,380.34/711,558.68 = 221,943.27/x
  3. Step 3: Cross multiply
    474,380.34x = 711,558.68 × 221,943.27
  4. Step 4: Simplify right side
    474,380.34x = 157,925,659,126.37
  5. Step 5: Solve for x
    x = 157,925,659,126.37/474,380.34
  6. Step 6: Final answer
    x = 332,909.37

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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.