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Finding the Fourth Proportional to 483,877.22, 667,787.92 and 290,292.19

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Solution

The fourth proportional to 483,877.22, 667,787.92 and 290,292.19 is: 400,625.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,877.22 : 667,787.92 = 290,292.19 : x
  2. Step 2: Convert to fraction form
    483,877.22/667,787.92 = 290,292.19/x
  3. Step 3: Cross multiply
    483,877.22x = 667,787.92 × 290,292.19
  4. Step 4: Simplify right side
    483,877.22x = 193,853,615,357.15
  5. Step 5: Solve for x
    x = 193,853,615,357.15/483,877.22
  6. Step 6: Final answer
    x = 400,625.63

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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.