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Finding the Fourth Proportional to 422,920.89, 583,625.39 and 241,631.42

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Solution

The fourth proportional to 422,920.89, 583,625.39 and 241,631.42 is: 333,448.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,920.89 : 583,625.39 = 241,631.42 : x
  2. Step 2: Convert to fraction form
    422,920.89/583,625.39 = 241,631.42/x
  3. Step 3: Cross multiply
    422,920.89x = 583,625.39 × 241,631.42
  4. Step 4: Simplify right side
    422,920.89x = 141,022,227,607.47
  5. Step 5: Solve for x
    x = 141,022,227,607.47/422,920.89
  6. Step 6: Final answer
    x = 333,448.24

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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.