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Finding the Fourth Proportional to 2,611,381,661.80, 3,660,771,620.60 and 2,611,381,661.80

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Solution

The fourth proportional to 2,611,381,661.80, 3,660,771,620.60 and 2,611,381,661.80 is: 3,660,771,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611,381,661.80 : 3,660,771,620.60 = 2,611,381,661.80 : x
  2. Step 2: Convert to fraction form
    2,611,381,661.80/3,660,771,620.60 = 2,611,381,661.80/x
  3. Step 3: Cross multiply
    2,611,381,661.80x = 3,660,771,620.60 × 2,611,381,661.80
  4. Step 4: Simplify right side
    2,611,381,661.80x = 9,559,671,878,072,707,072
  5. Step 5: Solve for x
    x = 9,559,671,878,072,707,072/2,611,381,661.80
  6. Step 6: Final answer
    x = 3,660,771,620.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.