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Finding the Fourth Proportional to 637,903,999.80, 957,303,897.30 and 274,659,046.20

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Solution

The fourth proportional to 637,903,999.80, 957,303,897.30 and 274,659,046.20 is: 412,181,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,903,999.80 : 957,303,897.30 = 274,659,046.20 : x
  2. Step 2: Convert to fraction form
    637,903,999.80/957,303,897.30 = 274,659,046.20/x
  3. Step 3: Cross multiply
    637,903,999.80x = 957,303,897.30 × 274,659,046.20
  4. Step 4: Simplify right side
    637,903,999.80x = 262,932,175,355,960,736
  5. Step 5: Solve for x
    x = 262,932,175,355,960,736/637,903,999.80
  6. Step 6: Final answer
    x = 412,181,418.27

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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.