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Finding the Fourth Proportional to 295,489,905.80, 443,234,858.70 and 196,854,456.20

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Solution

The fourth proportional to 295,489,905.80, 443,234,858.70 and 196,854,456.20 is: 295,281,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,489,905.80 : 443,234,858.70 = 196,854,456.20 : x
  2. Step 2: Convert to fraction form
    295,489,905.80/443,234,858.70 = 196,854,456.20/x
  3. Step 3: Cross multiply
    295,489,905.80x = 443,234,858.70 × 196,854,456.20
  4. Step 4: Simplify right side
    295,489,905.80x = 87,252,757,078,272,336
  5. Step 5: Solve for x
    x = 87,252,757,078,272,336/295,489,905.80
  6. Step 6: Final answer
    x = 295,281,684.30

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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.