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Finding the Fourth Proportional to 629,448.60, 944,451.95 and 329,857.95

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Solution

The fourth proportional to 629,448.60, 944,451.95 and 329,857.95 is: 494,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,448.60 : 944,451.95 = 329,857.95 : x
  2. Step 2: Convert to fraction form
    629,448.60/944,451.95 = 329,857.95/x
  3. Step 3: Cross multiply
    629,448.60x = 944,451.95 × 329,857.95
  4. Step 4: Simplify right side
    629,448.60x = 311,534,982,451.21
  5. Step 5: Solve for x
    x = 311,534,982,451.21/629,448.60
  6. Step 6: Final answer
    x = 494,933.16

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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.