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Finding the Fourth Proportional to 629,858,216.40, 944,787,324.60 and 220,914,366.90

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Solution

The fourth proportional to 629,858,216.40, 944,787,324.60 and 220,914,366.90 is: 331,371,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,216.40 : 944,787,324.60 = 220,914,366.90 : x
  2. Step 2: Convert to fraction form
    629,858,216.40/944,787,324.60 = 220,914,366.90/x
  3. Step 3: Cross multiply
    629,858,216.40x = 944,787,324.60 × 220,914,366.90
  4. Step 4: Simplify right side
    629,858,216.40x = 208,717,093,669,153,792
  5. Step 5: Solve for x
    x = 208,717,093,669,153,792/629,858,216.40
  6. Step 6: Final answer
    x = 331,371,550.35

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Half scale
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Double scale
Find fourth proportional to 629,858,217.40, 944,787,326.10 and 220,914,367.90
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.