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Finding the Fourth Proportional to 401,468.45, 554,026.44 and 222,620.45

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Solution

The fourth proportional to 401,468.45, 554,026.44 and 222,620.45 is: 307,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,468.45 : 554,026.44 = 222,620.45 : x
  2. Step 2: Convert to fraction form
    401,468.45/554,026.44 = 222,620.45/x
  3. Step 3: Cross multiply
    401,468.45x = 554,026.44 × 222,620.45
  4. Step 4: Simplify right side
    401,468.45x = 123,337,612,614.57
  5. Step 5: Solve for x
    x = 123,337,612,614.57/401,468.45
  6. Step 6: Final answer
    x = 307,216.21

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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.