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Finding the Fourth Proportional to 325,404.86, 487,920.41 and 173,414.81

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Solution

The fourth proportional to 325,404.86, 487,920.41 and 173,414.81 is: 260,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,404.86 : 487,920.41 = 173,414.81 : x
  2. Step 2: Convert to fraction form
    325,404.86/487,920.41 = 173,414.81/x
  3. Step 3: Cross multiply
    325,404.86x = 487,920.41 × 173,414.81
  4. Step 4: Simplify right side
    325,404.86x = 84,612,621,888.60
  5. Step 5: Solve for x
    x = 84,612,621,888.60/325,404.86
  6. Step 6: Final answer
    x = 260,022.62

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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.