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Finding the Fourth Proportional to 885,019,352.80, 1,324,978,112.40 and 885,019,352.80

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Solution

The fourth proportional to 885,019,352.80, 1,324,978,112.40 and 885,019,352.80 is: 1,324,978,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,019,352.80 : 1,324,978,112.40 = 885,019,352.80 : x
  2. Step 2: Convert to fraction form
    885,019,352.80/1,324,978,112.40 = 885,019,352.80/x
  3. Step 3: Cross multiply
    885,019,352.80x = 1,324,978,112.40 × 885,019,352.80
  4. Step 4: Simplify right side
    885,019,352.80x = 1,172,631,271,510,413,568
  5. Step 5: Solve for x
    x = 1,172,631,271,510,413,568/885,019,352.80
  6. Step 6: Final answer
    x = 1,324,978,112.40

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1.5x scale

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.