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Finding the Fourth Proportional to 447,997.20, 618,235.86 and 246,793.20

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Solution

The fourth proportional to 447,997.20, 618,235.86 and 246,793.20 is: 340,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,997.20 : 618,235.86 = 246,793.20 : x
  2. Step 2: Convert to fraction form
    447,997.20/618,235.86 = 246,793.20/x
  3. Step 3: Cross multiply
    447,997.20x = 618,235.86 × 246,793.20
  4. Step 4: Simplify right side
    447,997.20x = 152,576,401,919.01
  5. Step 5: Solve for x
    x = 152,576,401,919.01/447,997.20
  6. Step 6: Final answer
    x = 340,574.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.