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Finding the Fourth Proportional to 866,783.70, 1,300,175.55 and 227,086.20

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Solution

The fourth proportional to 866,783.70, 1,300,175.55 and 227,086.20 is: 340,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,783.70 : 1,300,175.55 = 227,086.20 : x
  2. Step 2: Convert to fraction form
    866,783.70/1,300,175.55 = 227,086.20/x
  3. Step 3: Cross multiply
    866,783.70x = 1,300,175.55 × 227,086.20
  4. Step 4: Simplify right side
    866,783.70x = 295,251,924,982.41
  5. Step 5: Solve for x
    x = 295,251,924,982.41/866,783.70
  6. Step 6: Final answer
    x = 340,629.30

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Double scale
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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.