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Finding the Fourth Proportional to 386,596.44, 579,755.58 and 133,808.25

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Solution

The fourth proportional to 386,596.44, 579,755.58 and 133,808.25 is: 200,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,596.44 : 579,755.58 = 133,808.25 : x
  2. Step 2: Convert to fraction form
    386,596.44/579,755.58 = 133,808.25/x
  3. Step 3: Cross multiply
    386,596.44x = 579,755.58 × 133,808.25
  4. Step 4: Simplify right side
    386,596.44x = 77,576,079,587.54
  5. Step 5: Solve for x
    x = 77,576,079,587.54/386,596.44
  6. Step 6: Final answer
    x = 200,664.24

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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.