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Finding the Fourth Proportional to 629,448.51, 944,451.81 and 329,857.86

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Solution

The fourth proportional to 629,448.51, 944,451.81 and 329,857.86 is: 494,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,448.51 : 944,451.81 = 329,857.86 : x
  2. Step 2: Convert to fraction form
    629,448.51/944,451.81 = 329,857.86/x
  3. Step 3: Cross multiply
    629,448.51x = 944,451.81 × 329,857.86
  4. Step 4: Simplify right side
    629,448.51x = 311,534,852,919.73
  5. Step 5: Solve for x
    x = 311,534,852,919.73/629,448.51
  6. Step 6: Final answer
    x = 494,933.02

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1.5x scale

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.