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Finding the Fourth Proportional to 365,716.62, 504,731.45 and 212,761.28

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Solution

The fourth proportional to 365,716.62, 504,731.45 and 212,761.28 is: 293,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,716.62 : 504,731.45 = 212,761.28 : x
  2. Step 2: Convert to fraction form
    365,716.62/504,731.45 = 212,761.28/x
  3. Step 3: Cross multiply
    365,716.62x = 504,731.45 × 212,761.28
  4. Step 4: Simplify right side
    365,716.62x = 107,387,311,151.99
  5. Step 5: Solve for x
    x = 107,387,311,151.99/365,716.62
  6. Step 6: Final answer
    x = 293,635.30

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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.