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Finding the Fourth Proportional to 401,576.64, 554,175.96 and 222,728.64

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Solution

The fourth proportional to 401,576.64, 554,175.96 and 222,728.64 is: 307,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,576.64 : 554,175.96 = 222,728.64 : x
  2. Step 2: Convert to fraction form
    401,576.64/554,175.96 = 222,728.64/x
  3. Step 3: Cross multiply
    401,576.64x = 554,175.96 × 222,728.64
  4. Step 4: Simplify right side
    401,576.64x = 123,430,857,891.49
  5. Step 5: Solve for x
    x = 123,430,857,891.49/401,576.64
  6. Step 6: Final answer
    x = 307,365.63

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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.