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Finding the Fourth Proportional to 629,798,908.80, 944,698,363.20 and 354,299,894.40

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Solution

The fourth proportional to 629,798,908.80, 944,698,363.20 and 354,299,894.40 is: 531,449,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,798,908.80 : 944,698,363.20 = 354,299,894.40 : x
  2. Step 2: Convert to fraction form
    629,798,908.80/944,698,363.20 = 354,299,894.40/x
  3. Step 3: Cross multiply
    629,798,908.80x = 944,698,363.20 × 354,299,894.40
  4. Step 4: Simplify right side
    629,798,908.80x = 334,706,530,321,612,864
  5. Step 5: Solve for x
    x = 334,706,530,321,612,864/629,798,908.80
  6. Step 6: Final answer
    x = 531,449,841.60

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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.