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Finding the Fourth Proportional to 400,245.44, 600,395.52 and 133,995.20

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Solution

The fourth proportional to 400,245.44, 600,395.52 and 133,995.20 is: 201,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,245.44 : 600,395.52 = 133,995.20 : x
  2. Step 2: Convert to fraction form
    400,245.44/600,395.52 = 133,995.20/x
  3. Step 3: Cross multiply
    400,245.44x = 600,395.52 × 133,995.20
  4. Step 4: Simplify right side
    400,245.44x = 80,450,117,781.50
  5. Step 5: Solve for x
    x = 80,450,117,781.50/400,245.44
  6. Step 6: Final answer
    x = 201,001.96

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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.