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Finding the Fourth Proportional to 401,096.60, 553,366.86 and 239,956.28

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Solution

The fourth proportional to 401,096.60, 553,366.86 and 239,956.28 is: 331,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,096.60 : 553,366.86 = 239,956.28 : x
  2. Step 2: Convert to fraction form
    401,096.60/553,366.86 = 239,956.28/x
  3. Step 3: Cross multiply
    401,096.60x = 553,366.86 × 239,956.28
  4. Step 4: Simplify right side
    401,096.60x = 132,783,853,200.88
  5. Step 5: Solve for x
    x = 132,783,853,200.88/401,096.60
  6. Step 6: Final answer
    x = 331,052.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.