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Finding the Fourth Proportional to 365,785.21, 504,956.17 and 275,175.69

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Solution

The fourth proportional to 365,785.21, 504,956.17 and 275,175.69 is: 379,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,785.21 : 504,956.17 = 275,175.69 : x
  2. Step 2: Convert to fraction form
    365,785.21/504,956.17 = 275,175.69/x
  3. Step 3: Cross multiply
    365,785.21x = 504,956.17 × 275,175.69
  4. Step 4: Simplify right side
    365,785.21x = 138,951,662,499.51
  5. Step 5: Solve for x
    x = 138,951,662,499.51/365,785.21
  6. Step 6: Final answer
    x = 379,872.28

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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.