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Finding the Fourth Proportional to 483,863.07, 667,693.17 and 268,990.05

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Solution

The fourth proportional to 483,863.07, 667,693.17 and 268,990.05 is: 371,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,863.07 : 667,693.17 = 268,990.05 : x
  2. Step 2: Convert to fraction form
    483,863.07/667,693.17 = 268,990.05/x
  3. Step 3: Cross multiply
    483,863.07x = 667,693.17 × 268,990.05
  4. Step 4: Simplify right side
    483,863.07x = 179,602,819,182.96
  5. Step 5: Solve for x
    x = 179,602,819,182.96/483,863.07
  6. Step 6: Final answer
    x = 371,185.22

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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.