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Finding the Fourth Proportional to 484,334.42, 726,494.32 and 217,906.79

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Solution

The fourth proportional to 484,334.42, 726,494.32 and 217,906.79 is: 326,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,334.42 : 726,494.32 = 217,906.79 : x
  2. Step 2: Convert to fraction form
    484,334.42/726,494.32 = 217,906.79/x
  3. Step 3: Cross multiply
    484,334.42x = 726,494.32 × 217,906.79
  4. Step 4: Simplify right side
    484,334.42x = 158,308,045,224.43
  5. Step 5: Solve for x
    x = 158,308,045,224.43/484,334.42
  6. Step 6: Final answer
    x = 326,856.90

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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.