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Finding the Fourth Proportional to 629,478.48, 944,496.84 and 329,887.84

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Solution

The fourth proportional to 629,478.48, 944,496.84 and 329,887.84 is: 494,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,478.48 : 944,496.84 = 329,887.84 : x
  2. Step 2: Convert to fraction form
    629,478.48/944,496.84 = 329,887.84/x
  3. Step 3: Cross multiply
    629,478.48x = 944,496.84 × 329,887.84
  4. Step 4: Simplify right side
    629,478.48x = 311,578,022,434.43
  5. Step 5: Solve for x
    x = 311,578,022,434.43/629,478.48
  6. Step 6: Final answer
    x = 494,978.04

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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.