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Finding the Fourth Proportional to 547,546.80, 755,606.54 and 305,832.90

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Solution

The fourth proportional to 547,546.80, 755,606.54 and 305,832.90 is: 422,044.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,546.80 : 755,606.54 = 305,832.90 : x
  2. Step 2: Convert to fraction form
    547,546.80/755,606.54 = 305,832.90/x
  3. Step 3: Cross multiply
    547,546.80x = 755,606.54 × 305,832.90
  4. Step 4: Simplify right side
    547,546.80x = 231,089,339,387.17
  5. Step 5: Solve for x
    x = 231,089,339,387.17/547,546.80
  6. Step 6: Final answer
    x = 422,044.91

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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.