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Finding the Fourth Proportional to 662,847.11, 994,334.91 and 263,398.40

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Solution

The fourth proportional to 662,847.11, 994,334.91 and 263,398.40 is: 395,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,847.11 : 994,334.91 = 263,398.40 : x
  2. Step 2: Convert to fraction form
    662,847.11/994,334.91 = 263,398.40/x
  3. Step 3: Cross multiply
    662,847.11x = 994,334.91 × 263,398.40
  4. Step 4: Simplify right side
    662,847.11x = 261,906,224,358.14
  5. Step 5: Solve for x
    x = 261,906,224,358.14/662,847.11
  6. Step 6: Final answer
    x = 395,123.13

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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.