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Finding the Fourth Proportional to 885,731,977.80, 1,328,597,966.70 and 798,056,022.60

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Solution

The fourth proportional to 885,731,977.80, 1,328,597,966.70 and 798,056,022.60 is: 1,197,084,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,731,977.80 : 1,328,597,966.70 = 798,056,022.60 : x
  2. Step 2: Convert to fraction form
    885,731,977.80/1,328,597,966.70 = 798,056,022.60/x
  3. Step 3: Cross multiply
    885,731,977.80x = 1,328,597,966.70 × 798,056,022.60
  4. Step 4: Simplify right side
    885,731,977.80x = 1,060,295,608,939,049,344
  5. Step 5: Solve for x
    x = 1,060,295,608,939,049,344/885,731,977.80
  6. Step 6: Final answer
    x = 1,197,084,033.90

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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.