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Finding the Fourth Proportional to 447,558.89, 617,644.39 and 243,623.11

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Solution

The fourth proportional to 447,558.89, 617,644.39 and 243,623.11 is: 336,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,558.89 : 617,644.39 = 243,623.11 : x
  2. Step 2: Convert to fraction form
    447,558.89/617,644.39 = 243,623.11/x
  3. Step 3: Cross multiply
    447,558.89x = 617,644.39 × 243,623.11
  4. Step 4: Simplify right side
    447,558.89x = 150,472,446,627.56
  5. Step 5: Solve for x
    x = 150,472,446,627.56/447,558.89
  6. Step 6: Final answer
    x = 336,207.04

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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.