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Finding the Fourth Proportional to 268,694.40, 402,458.40 and 222,038.40

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Solution

The fourth proportional to 268,694.40, 402,458.40 and 222,038.40 is: 332,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,694.40 : 402,458.40 = 222,038.40 : x
  2. Step 2: Convert to fraction form
    268,694.40/402,458.40 = 222,038.40/x
  3. Step 3: Cross multiply
    268,694.40x = 402,458.40 × 222,038.40
  4. Step 4: Simplify right side
    268,694.40x = 89,361,219,202.56
  5. Step 5: Solve for x
    x = 89,361,219,202.56/268,694.40
  6. Step 6: Final answer
    x = 332,575.67

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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.