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Finding the Fourth Proportional to 552,112.60, 828,168.90 and 197,138.20

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Solution

The fourth proportional to 552,112.60, 828,168.90 and 197,138.20 is: 295,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,112.60 : 828,168.90 = 197,138.20 : x
  2. Step 2: Convert to fraction form
    552,112.60/828,168.90 = 197,138.20/x
  3. Step 3: Cross multiply
    552,112.60x = 828,168.90 × 197,138.20
  4. Step 4: Simplify right side
    552,112.60x = 163,263,726,241.98
  5. Step 5: Solve for x
    x = 163,263,726,241.98/552,112.60
  6. Step 6: Final answer
    x = 295,707.30

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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.