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Finding the Fourth Proportional to 547,235.01, 755,310.29 and 320,953.41

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Solution

The fourth proportional to 547,235.01, 755,310.29 and 320,953.41 is: 442,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,235.01 : 755,310.29 = 320,953.41 : x
  2. Step 2: Convert to fraction form
    547,235.01/755,310.29 = 320,953.41/x
  3. Step 3: Cross multiply
    547,235.01x = 755,310.29 × 320,953.41
  4. Step 4: Simplify right side
    547,235.01x = 242,419,411,578.82
  5. Step 5: Solve for x
    x = 242,419,411,578.82/547,235.01
  6. Step 6: Final answer
    x = 442,989.59

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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.