Home / 389,177.86-583,766.79-178,992.58

Finding the Fourth Proportional to 389,177.86, 583,766.79 and 178,992.58

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Solution

The fourth proportional to 389,177.86, 583,766.79 and 178,992.58 is: 268,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,177.86 : 583,766.79 = 178,992.58 : x
  2. Step 2: Convert to fraction form
    389,177.86/583,766.79 = 178,992.58/x
  3. Step 3: Cross multiply
    389,177.86x = 583,766.79 × 178,992.58
  4. Step 4: Simplify right side
    389,177.86x = 104,489,923,860.42
  5. Step 5: Solve for x
    x = 104,489,923,860.42/389,177.86
  6. Step 6: Final answer
    x = 268,488.87

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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.