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Finding the Fourth Proportional to 483,886.16, 667,712.20 and 268,991.60

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Solution

The fourth proportional to 483,886.16, 667,712.20 and 268,991.60 is: 371,180.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,886.16 : 667,712.20 = 268,991.60 : x
  2. Step 2: Convert to fraction form
    483,886.16/667,712.20 = 268,991.60/x
  3. Step 3: Cross multiply
    483,886.16x = 667,712.20 × 268,991.60
  4. Step 4: Simplify right side
    483,886.16x = 179,608,973,017.52
  5. Step 5: Solve for x
    x = 179,608,973,017.52/483,886.16
  6. Step 6: Final answer
    x = 371,180.22

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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.