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Finding the Fourth Proportional to 547,645.73, 755,747.48 and 305,926.16

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Solution

The fourth proportional to 547,645.73, 755,747.48 and 305,926.16 is: 422,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,645.73 : 755,747.48 = 305,926.16 : x
  2. Step 2: Convert to fraction form
    547,645.73/755,747.48 = 305,926.16/x
  3. Step 3: Cross multiply
    547,645.73x = 755,747.48 × 305,926.16
  4. Step 4: Simplify right side
    547,645.73x = 231,202,921,472.16
  5. Step 5: Solve for x
    x = 231,202,921,472.16/547,645.73
  6. Step 6: Final answer
    x = 422,176.07

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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.