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Finding the Fourth Proportional to 629,420.98, 944,138.02 and 503,859.40

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Solution

The fourth proportional to 629,420.98, 944,138.02 and 503,859.40 is: 755,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,420.98 : 944,138.02 = 503,859.40 : x
  2. Step 2: Convert to fraction form
    629,420.98/944,138.02 = 503,859.40/x
  3. Step 3: Cross multiply
    629,420.98x = 944,138.02 × 503,859.40
  4. Step 4: Simplify right side
    629,420.98x = 475,712,816,274.39
  5. Step 5: Solve for x
    x = 475,712,816,274.39/629,420.98
  6. Step 6: Final answer
    x = 755,794.34

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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.