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Finding the Fourth Proportional to 400,015.45, 600,097.90 and 133,777.36

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Solution

The fourth proportional to 400,015.45, 600,097.90 and 133,777.36 is: 200,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,015.45 : 600,097.90 = 133,777.36 : x
  2. Step 2: Convert to fraction form
    400,015.45/600,097.90 = 133,777.36/x
  3. Step 3: Cross multiply
    400,015.45x = 600,097.90 × 133,777.36
  4. Step 4: Simplify right side
    400,015.45x = 80,279,512,803.54
  5. Step 5: Solve for x
    x = 80,279,512,803.54/400,015.45
  6. Step 6: Final answer
    x = 200,691.03

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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.