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Finding the Fourth Proportional to 887,434,687.80, 1,328,601,114.90 and 543,060,919.80

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Solution

The fourth proportional to 887,434,687.80, 1,328,601,114.90 and 543,060,919.80 is: 813,030,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,434,687.80 : 1,328,601,114.90 = 543,060,919.80 : x
  2. Step 2: Convert to fraction form
    887,434,687.80/1,328,601,114.90 = 543,060,919.80/x
  3. Step 3: Cross multiply
    887,434,687.80x = 1,328,601,114.90 × 543,060,919.80
  4. Step 4: Simplify right side
    887,434,687.80x = 721,511,343,504,899,456
  5. Step 5: Solve for x
    x = 721,511,343,504,899,456/887,434,687.80
  6. Step 6: Final answer
    x = 813,030,359.78

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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.