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Finding the Fourth Proportional to 403,958.94, 557,463.18 and 222,673.88

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Solution

The fourth proportional to 403,958.94, 557,463.18 and 222,673.88 is: 307,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,958.94 : 557,463.18 = 222,673.88 : x
  2. Step 2: Convert to fraction form
    403,958.94/557,463.18 = 222,673.88/x
  3. Step 3: Cross multiply
    403,958.94x = 557,463.18 × 222,673.88
  4. Step 4: Simplify right side
    403,958.94x = 124,132,486,460.42
  5. Step 5: Solve for x
    x = 124,132,486,460.42/403,958.94
  6. Step 6: Final answer
    x = 307,289.86

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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.