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Finding the Fourth Proportional to 474,200.46, 711,299.88 and 221,396.22

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Solution

The fourth proportional to 474,200.46, 711,299.88 and 221,396.22 is: 332,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,200.46 : 711,299.88 = 221,396.22 : x
  2. Step 2: Convert to fraction form
    474,200.46/711,299.88 = 221,396.22/x
  3. Step 3: Cross multiply
    474,200.46x = 711,299.88 × 221,396.22
  4. Step 4: Simplify right side
    474,200.46x = 157,479,104,718.45
  5. Step 5: Solve for x
    x = 157,479,104,718.45/474,200.46
  6. Step 6: Final answer
    x = 332,093.95

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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.