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Finding the Fourth Proportional to 886,684,967.10, 1,327,759,969.05 and 655,401,843.90

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Solution

The fourth proportional to 886,684,967.10, 1,327,759,969.05 and 655,401,843.90 is: 981,426,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,684,967.10 : 1,327,759,969.05 = 655,401,843.90 : x
  2. Step 2: Convert to fraction form
    886,684,967.10/1,327,759,969.05 = 655,401,843.90/x
  3. Step 3: Cross multiply
    886,684,967.10x = 1,327,759,969.05 × 655,401,843.90
  4. Step 4: Simplify right side
    886,684,967.10x = 870,216,331,971,976,832
  5. Step 5: Solve for x
    x = 870,216,331,971,976,832/886,684,967.10
  6. Step 6: Final answer
    x = 981,426,734.70

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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.