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Finding the Fourth Proportional to 483,864.66, 667,702.08 and 268,999.20

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Solution

The fourth proportional to 483,864.66, 667,702.08 and 268,999.20 is: 371,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,864.66 : 667,702.08 = 268,999.20 : x
  2. Step 2: Convert to fraction form
    483,864.66/667,702.08 = 268,999.20/x
  3. Step 3: Cross multiply
    483,864.66x = 667,702.08 × 268,999.20
  4. Step 4: Simplify right side
    483,864.66x = 179,611,325,358.34
  5. Step 5: Solve for x
    x = 179,611,325,358.34/483,864.66
  6. Step 6: Final answer
    x = 371,201.58

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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.