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Finding the Fourth Proportional to 629,858,000.20, 944,787,000.30 and 629,858,000.20

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Solution

The fourth proportional to 629,858,000.20, 944,787,000.30 and 629,858,000.20 is: 944,787,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,000.20 : 944,787,000.30 = 629,858,000.20 : x
  2. Step 2: Convert to fraction form
    629,858,000.20/944,787,000.30 = 629,858,000.20/x
  3. Step 3: Cross multiply
    629,858,000.20x = 944,787,000.30 × 629,858,000.20
  4. Step 4: Simplify right side
    629,858,000.20x = 595,081,650,623,914,752
  5. Step 5: Solve for x
    x = 595,081,650,623,914,752/629,858,000.20
  6. Step 6: Final answer
    x = 944,787,000.30

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Similar ratio
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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.