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Finding the Fourth Proportional to 773,990,561.60, 1,086,647,886.40 and 773,990,561.60

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Solution

The fourth proportional to 773,990,561.60, 1,086,647,886.40 and 773,990,561.60 is: 1,086,647,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,990,561.60 : 1,086,647,886.40 = 773,990,561.60 : x
  2. Step 2: Convert to fraction form
    773,990,561.60/1,086,647,886.40 = 773,990,561.60/x
  3. Step 3: Cross multiply
    773,990,561.60x = 1,086,647,886.40 × 773,990,561.60
  4. Step 4: Simplify right side
    773,990,561.60x = 841,055,207,856,189,056
  5. Step 5: Solve for x
    x = 841,055,207,856,189,056/773,990,561.60
  6. Step 6: Final answer
    x = 1,086,647,886.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.