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Finding the Fourth Proportional to 1,263,707,999.90, 1,892,160,777.45 and 1,263,707,999.90

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Solution

The fourth proportional to 1,263,707,999.90, 1,892,160,777.45 and 1,263,707,999.90 is: 1,892,160,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,707,999.90 : 1,892,160,777.45 = 1,263,707,999.90 : x
  2. Step 2: Convert to fraction form
    1,263,707,999.90/1,892,160,777.45 = 1,263,707,999.90/x
  3. Step 3: Cross multiply
    1,263,707,999.90x = 1,892,160,777.45 × 1,263,707,999.90
  4. Step 4: Simplify right side
    1,263,707,999.90x = 2,391,138,711,560,568,832
  5. Step 5: Solve for x
    x = 2,391,138,711,560,568,832/1,263,707,999.90
  6. Step 6: Final answer
    x = 1,892,160,777.45

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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.