Home / 834,174,977.70-1,251,262,466.55-641,061,128.10

Finding the Fourth Proportional to 834,174,977.70, 1,251,262,466.55 and 641,061,128.10

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Solution

The fourth proportional to 834,174,977.70, 1,251,262,466.55 and 641,061,128.10 is: 961,591,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,174,977.70 : 1,251,262,466.55 = 641,061,128.10 : x
  2. Step 2: Convert to fraction form
    834,174,977.70/1,251,262,466.55 = 641,061,128.10/x
  3. Step 3: Cross multiply
    834,174,977.70x = 1,251,262,466.55 × 641,061,128.10
  4. Step 4: Simplify right side
    834,174,977.70x = 802,135,728,355,731,456
  5. Step 5: Solve for x
    x = 802,135,728,355,731,456/834,174,977.70
  6. Step 6: Final answer
    x = 961,591,692.15

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Double scale
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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.