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Finding the Fourth Proportional to 474,905.80, 712,358.70 and 159,286.60

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Solution

The fourth proportional to 474,905.80, 712,358.70 and 159,286.60 is: 238,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,905.80 : 712,358.70 = 159,286.60 : x
  2. Step 2: Convert to fraction form
    474,905.80/712,358.70 = 159,286.60/x
  3. Step 3: Cross multiply
    474,905.80x = 712,358.70 × 159,286.60
  4. Step 4: Simplify right side
    474,905.80x = 113,469,195,303.42
  5. Step 5: Solve for x
    x = 113,469,195,303.42/474,905.80
  6. Step 6: Final answer
    x = 238,929.90

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Similar ratio
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1.5x scale

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.