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Finding the Fourth Proportional to 552,164.80, 828,247.20 and 197,190.40

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Solution

The fourth proportional to 552,164.80, 828,247.20 and 197,190.40 is: 295,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,164.80 : 828,247.20 = 197,190.40 : x
  2. Step 2: Convert to fraction form
    552,164.80/828,247.20 = 197,190.40/x
  3. Step 3: Cross multiply
    552,164.80x = 828,247.20 × 197,190.40
  4. Step 4: Simplify right side
    552,164.80x = 163,322,396,666.88
  5. Step 5: Solve for x
    x = 163,322,396,666.88/552,164.80
  6. Step 6: Final answer
    x = 295,785.60

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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.