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Finding the Fourth Proportional to 635,324,734.20, 887,640,642.60 and 635,324,734.20

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Solution

The fourth proportional to 635,324,734.20, 887,640,642.60 and 635,324,734.20 is: 887,640,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,324,734.20 : 887,640,642.60 = 635,324,734.20 : x
  2. Step 2: Convert to fraction form
    635,324,734.20/887,640,642.60 = 635,324,734.20/x
  3. Step 3: Cross multiply
    635,324,734.20x = 887,640,642.60 × 635,324,734.20
  4. Step 4: Simplify right side
    635,324,734.20x = 563,940,055,324,962,240
  5. Step 5: Solve for x
    x = 563,940,055,324,962,240/635,324,734.20
  6. Step 6: Final answer
    x = 887,640,642.60

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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.