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Finding the Fourth Proportional to 327,665.66, 451,945.66 and 218,715.05

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Solution

The fourth proportional to 327,665.66, 451,945.66 and 218,715.05 is: 301,671.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,665.66 : 451,945.66 = 218,715.05 : x
  2. Step 2: Convert to fraction form
    327,665.66/451,945.66 = 218,715.05/x
  3. Step 3: Cross multiply
    327,665.66x = 451,945.66 × 218,715.05
  4. Step 4: Simplify right side
    327,665.66x = 98,847,318,617.35
  5. Step 5: Solve for x
    x = 98,847,318,617.35/327,665.66
  6. Step 6: Final answer
    x = 301,671.28

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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.