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Finding the Fourth Proportional to 416,502.53, 574,343.89 and 356,272.55

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Solution

The fourth proportional to 416,502.53, 574,343.89 and 356,272.55 is: 491,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,502.53 : 574,343.89 = 356,272.55 : x
  2. Step 2: Convert to fraction form
    416,502.53/574,343.89 = 356,272.55/x
  3. Step 3: Cross multiply
    416,502.53x = 574,343.89 × 356,272.55
  4. Step 4: Simplify right side
    416,502.53x = 204,622,958,504.82
  5. Step 5: Solve for x
    x = 204,622,958,504.82/416,502.53
  6. Step 6: Final answer
    x = 491,288.64

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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.