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Finding the Fourth Proportional to 483,989.73, 667,878.36 and 269,125.18

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Solution

The fourth proportional to 483,989.73, 667,878.36 and 269,125.18 is: 371,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,989.73 : 667,878.36 = 269,125.18 : x
  2. Step 2: Convert to fraction form
    483,989.73/667,878.36 = 269,125.18/x
  3. Step 3: Cross multiply
    483,989.73x = 667,878.36 × 269,125.18
  4. Step 4: Simplify right side
    483,989.73x = 179,742,886,444.83
  5. Step 5: Solve for x
    x = 179,742,886,444.83/483,989.73
  6. Step 6: Final answer
    x = 371,377.48

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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.