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Finding the Fourth Proportional to 483,894.66, 667,736.64 and 269,021.64

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Solution

The fourth proportional to 483,894.66, 667,736.64 and 269,021.64 is: 371,228.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,894.66 : 667,736.64 = 269,021.64 : x
  2. Step 2: Convert to fraction form
    483,894.66/667,736.64 = 269,021.64/x
  3. Step 3: Cross multiply
    483,894.66x = 667,736.64 × 269,021.64
  4. Step 4: Simplify right side
    483,894.66x = 179,635,605,980.89
  5. Step 5: Solve for x
    x = 179,635,605,980.89/483,894.66
  6. Step 6: Final answer
    x = 371,228.74

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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.