Home / 386,241.86-579,363.27-105,761.54

Finding the Fourth Proportional to 386,241.86, 579,363.27 and 105,761.54

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Solution

The fourth proportional to 386,241.86, 579,363.27 and 105,761.54 is: 158,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,241.86 : 579,363.27 = 105,761.54 : x
  2. Step 2: Convert to fraction form
    386,241.86/579,363.27 = 105,761.54/x
  3. Step 3: Cross multiply
    386,241.86x = 579,363.27 × 105,761.54
  4. Step 4: Simplify right side
    386,241.86x = 61,274,351,654.64
  5. Step 5: Solve for x
    x = 61,274,351,654.64/386,241.86
  6. Step 6: Final answer
    x = 158,642.44

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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.