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Finding the Fourth Proportional to 483,843.32, 667,726.58 and 268,986.98

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Solution

The fourth proportional to 483,843.32, 667,726.58 and 268,986.98 is: 371,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,843.32 : 667,726.58 = 268,986.98 : x
  2. Step 2: Convert to fraction form
    483,843.32/667,726.58 = 268,986.98/x
  3. Step 3: Cross multiply
    483,843.32x = 667,726.58 × 268,986.98
  4. Step 4: Simplify right side
    483,843.32x = 179,609,756,219.93
  5. Step 5: Solve for x
    x = 179,609,756,219.93/483,843.32
  6. Step 6: Final answer
    x = 371,214.71

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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.