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Finding the Fourth Proportional to 356,664.20, 534,218.70 and 294,456.20

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Solution

The fourth proportional to 356,664.20, 534,218.70 and 294,456.20 is: 441,042.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,664.20 : 534,218.70 = 294,456.20 : x
  2. Step 2: Convert to fraction form
    356,664.20/534,218.70 = 294,456.20/x
  3. Step 3: Cross multiply
    356,664.20x = 534,218.70 × 294,456.20
  4. Step 4: Simplify right side
    356,664.20x = 157,304,008,370.94
  5. Step 5: Solve for x
    x = 157,304,008,370.94/356,664.20
  6. Step 6: Final answer
    x = 441,042.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.