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Finding the Fourth Proportional to 404,394.43, 558,060.44 and 223,107.82

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Solution

The fourth proportional to 404,394.43, 558,060.44 and 223,107.82 is: 307,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,394.43 : 558,060.44 = 223,107.82 : x
  2. Step 2: Convert to fraction form
    404,394.43/558,060.44 = 223,107.82/x
  3. Step 3: Cross multiply
    404,394.43x = 558,060.44 × 223,107.82
  4. Step 4: Simplify right side
    404,394.43x = 124,507,645,406.34
  5. Step 5: Solve for x
    x = 124,507,645,406.34/404,394.43
  6. Step 6: Final answer
    x = 307,886.65

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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.