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Finding the Fourth Proportional to 547,560.72, 755,625.76 and 305,846.68

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Solution

The fourth proportional to 547,560.72, 755,625.76 and 305,846.68 is: 422,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,560.72 : 755,625.76 = 305,846.68 : x
  2. Step 2: Convert to fraction form
    547,560.72/755,625.76 = 305,846.68/x
  3. Step 3: Cross multiply
    547,560.72x = 755,625.76 × 305,846.68
  4. Step 4: Simplify right side
    547,560.72x = 231,105,630,018.48
  5. Step 5: Solve for x
    x = 231,105,630,018.48/547,560.72
  6. Step 6: Final answer
    x = 422,063.93

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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.