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Finding the Fourth Proportional to 394,657.56, 544,677.30 and 258,805.80

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Solution

The fourth proportional to 394,657.56, 544,677.30 and 258,805.80 is: 357,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,657.56 : 544,677.30 = 258,805.80 : x
  2. Step 2: Convert to fraction form
    394,657.56/544,677.30 = 258,805.80/x
  3. Step 3: Cross multiply
    394,657.56x = 544,677.30 × 258,805.80
  4. Step 4: Simplify right side
    394,657.56x = 140,965,644,368.34
  5. Step 5: Solve for x
    x = 140,965,644,368.34/394,657.56
  6. Step 6: Final answer
    x = 357,184.71

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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.