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Finding the Fourth Proportional to 483,709.86, 667,490.85 and 268,842.51

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Solution

The fourth proportional to 483,709.86, 667,490.85 and 268,842.51 is: 370,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,709.86 : 667,490.85 = 268,842.51 : x
  2. Step 2: Convert to fraction form
    483,709.86/667,490.85 = 268,842.51/x
  3. Step 3: Cross multiply
    483,709.86x = 667,490.85 × 268,842.51
  4. Step 4: Simplify right side
    483,709.86x = 179,449,915,516.03
  5. Step 5: Solve for x
    x = 179,449,915,516.03/483,709.86
  6. Step 6: Final answer
    x = 370,986.68

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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.