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Finding the Fourth Proportional to 752,965,718.40, 1,129,448,577.60 and 752,965,718.40

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Solution

The fourth proportional to 752,965,718.40, 1,129,448,577.60 and 752,965,718.40 is: 1,129,448,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,965,718.40 : 1,129,448,577.60 = 752,965,718.40 : x
  2. Step 2: Convert to fraction form
    752,965,718.40/1,129,448,577.60 = 752,965,718.40/x
  3. Step 3: Cross multiply
    752,965,718.40x = 1,129,448,577.60 × 752,965,718.40
  4. Step 4: Simplify right side
    752,965,718.40x = 850,436,059,628,442,112
  5. Step 5: Solve for x
    x = 850,436,059,628,442,112/752,965,718.40
  6. Step 6: Final answer
    x = 1,129,448,577.60

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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.