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Finding the Fourth Proportional to 568,726.34, 785,162.68 and 394,548.19

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Solution

The fourth proportional to 568,726.34, 785,162.68 and 394,548.19 is: 544,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,726.34 : 785,162.68 = 394,548.19 : x
  2. Step 2: Convert to fraction form
    568,726.34/785,162.68 = 394,548.19/x
  3. Step 3: Cross multiply
    568,726.34x = 785,162.68 × 394,548.19
  4. Step 4: Simplify right side
    568,726.34x = 309,784,511,300.27
  5. Step 5: Solve for x
    x = 309,784,511,300.27/568,726.34
  6. Step 6: Final answer
    x = 544,698.73

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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.