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Finding the Fourth Proportional to 295,489,903.80, 443,234,855.70 and 196,854,454.20

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Solution

The fourth proportional to 295,489,903.80, 443,234,855.70 and 196,854,454.20 is: 295,281,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,489,903.80 : 443,234,855.70 = 196,854,454.20 : x
  2. Step 2: Convert to fraction form
    295,489,903.80/443,234,855.70 = 196,854,454.20/x
  3. Step 3: Cross multiply
    295,489,903.80x = 443,234,855.70 × 196,854,454.20
  4. Step 4: Simplify right side
    295,489,903.80x = 87,252,755,601,239,248
  5. Step 5: Solve for x
    x = 87,252,755,601,239,248/295,489,903.80
  6. Step 6: Final answer
    x = 295,281,681.30

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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.