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Finding the Fourth Proportional to 404,428.26, 558,160.42 and 232,345.90

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Solution

The fourth proportional to 404,428.26, 558,160.42 and 232,345.90 is: 320,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,428.26 : 558,160.42 = 232,345.90 : x
  2. Step 2: Convert to fraction form
    404,428.26/558,160.42 = 232,345.90/x
  3. Step 3: Cross multiply
    404,428.26x = 558,160.42 × 232,345.90
  4. Step 4: Simplify right side
    404,428.26x = 129,686,285,129.28
  5. Step 5: Solve for x
    x = 129,686,285,129.28/404,428.26
  6. Step 6: Final answer
    x = 320,665.73

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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.