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Finding the Fourth Proportional to 379,755.51, 523,884.17 and 270,883.91

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Solution

The fourth proportional to 379,755.51, 523,884.17 and 270,883.91 is: 373,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,755.51 : 523,884.17 = 270,883.91 : x
  2. Step 2: Convert to fraction form
    379,755.51/523,884.17 = 270,883.91/x
  3. Step 3: Cross multiply
    379,755.51x = 523,884.17 × 270,883.91
  4. Step 4: Simplify right side
    379,755.51x = 141,911,790,414.49
  5. Step 5: Solve for x
    x = 141,911,790,414.49/379,755.51
  6. Step 6: Final answer
    x = 373,692.51

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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.