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Finding the Fourth Proportional to 403,636.52, 557,062.14 and 222,367.02

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Solution

The fourth proportional to 403,636.52, 557,062.14 and 222,367.02 is: 306,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,636.52 : 557,062.14 = 222,367.02 : x
  2. Step 2: Convert to fraction form
    403,636.52/557,062.14 = 222,367.02/x
  3. Step 3: Cross multiply
    403,636.52x = 557,062.14 × 222,367.02
  4. Step 4: Simplify right side
    403,636.52x = 123,872,248,026.62
  5. Step 5: Solve for x
    x = 123,872,248,026.62/403,636.52
  6. Step 6: Final answer
    x = 306,890.59

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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.