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Finding the Fourth Proportional to 663,557,824.80, 995,336,737.20 and 623,213,863.20

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Solution

The fourth proportional to 663,557,824.80, 995,336,737.20 and 623,213,863.20 is: 934,820,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,557,824.80 : 995,336,737.20 = 623,213,863.20 : x
  2. Step 2: Convert to fraction form
    663,557,824.80/995,336,737.20 = 623,213,863.20/x
  3. Step 3: Cross multiply
    663,557,824.80x = 995,336,737.20 × 623,213,863.20
  4. Step 4: Simplify right side
    663,557,824.80x = 620,307,653,175,295,232
  5. Step 5: Solve for x
    x = 620,307,653,175,295,232/663,557,824.80
  6. Step 6: Final answer
    x = 934,820,794.80

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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.