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Finding the Fourth Proportional to 447,792.75, 617,945.13 and 243,846.09

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Solution

The fourth proportional to 447,792.75, 617,945.13 and 243,846.09 is: 336,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,792.75 : 617,945.13 = 243,846.09 : x
  2. Step 2: Convert to fraction form
    447,792.75/617,945.13 = 243,846.09/x
  3. Step 3: Cross multiply
    447,792.75x = 617,945.13 × 243,846.09
  4. Step 4: Simplify right side
    447,792.75x = 150,683,503,785.04
  5. Step 5: Solve for x
    x = 150,683,503,785.04/447,792.75
  6. Step 6: Final answer
    x = 336,502.78

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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.