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Finding the Fourth Proportional to 361,395.81, 498,727.13 and 200,249.55

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Solution

The fourth proportional to 361,395.81, 498,727.13 and 200,249.55 is: 276,344.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,395.81 : 498,727.13 = 200,249.55 : x
  2. Step 2: Convert to fraction form
    361,395.81/498,727.13 = 200,249.55/x
  3. Step 3: Cross multiply
    361,395.81x = 498,727.13 × 200,249.55
  4. Step 4: Simplify right side
    361,395.81x = 99,869,882,354.04
  5. Step 5: Solve for x
    x = 99,869,882,354.04/361,395.81
  6. Step 6: Final answer
    x = 276,344.88

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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.