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Finding the Fourth Proportional to 576,398.38, 795,428.96 and 321,749.56

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Solution

The fourth proportional to 576,398.38, 795,428.96 and 321,749.56 is: 444,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,398.38 : 795,428.96 = 321,749.56 : x
  2. Step 2: Convert to fraction form
    576,398.38/795,428.96 = 321,749.56/x
  3. Step 3: Cross multiply
    576,398.38x = 795,428.96 × 321,749.56
  4. Step 4: Simplify right side
    576,398.38x = 255,928,917,891.26
  5. Step 5: Solve for x
    x = 255,928,917,891.26/576,398.38
  6. Step 6: Final answer
    x = 444,013.94

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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.