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Finding the Fourth Proportional to 463,490.40, 694,717.20 and 263,906.40

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Solution

The fourth proportional to 463,490.40, 694,717.20 and 263,906.40 is: 395,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,490.40 : 694,717.20 = 263,906.40 : x
  2. Step 2: Convert to fraction form
    463,490.40/694,717.20 = 263,906.40/x
  3. Step 3: Cross multiply
    463,490.40x = 694,717.20 × 263,906.40
  4. Step 4: Simplify right side
    463,490.40x = 183,340,315,270.08
  5. Step 5: Solve for x
    x = 183,340,315,270.08/463,490.40
  6. Step 6: Final answer
    x = 395,564.43

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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.