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Finding the Fourth Proportional to 215,448.35, 324,785.88 and 200,997.74

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Solution

The fourth proportional to 215,448.35, 324,785.88 and 200,997.74 is: 303,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,448.35 : 324,785.88 = 200,997.74 : x
  2. Step 2: Convert to fraction form
    215,448.35/324,785.88 = 200,997.74/x
  3. Step 3: Cross multiply
    215,448.35x = 324,785.88 × 200,997.74
  4. Step 4: Simplify right side
    215,448.35x = 65,281,226,239.98
  5. Step 5: Solve for x
    x = 65,281,226,239.98/215,448.35
  6. Step 6: Final answer
    x = 303,001.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.