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Finding the Fourth Proportional to 293,884.40, 439,660.20 and 254,874.80

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Solution

The fourth proportional to 293,884.40, 439,660.20 and 254,874.80 is: 381,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,884.40 : 439,660.20 = 254,874.80 : x
  2. Step 2: Convert to fraction form
    293,884.40/439,660.20 = 254,874.80/x
  3. Step 3: Cross multiply
    293,884.40x = 439,660.20 × 254,874.80
  4. Step 4: Simplify right side
    293,884.40x = 112,058,305,542.96
  5. Step 5: Solve for x
    x = 112,058,305,542.96/293,884.40
  6. Step 6: Final answer
    x = 381,300.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.