Home / 2,156,691-3,234,755.43-640,343.46

Finding the Fourth Proportional to 2,156,691, 3,234,755.43 and 640,343.46

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Solution

The fourth proportional to 2,156,691, 3,234,755.43 and 640,343.46 is: 960,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,691 : 3,234,755.43 = 640,343.46 : x
  2. Step 2: Convert to fraction form
    2,156,691/3,234,755.43 = 640,343.46/x
  3. Step 3: Cross multiply
    2,156,691x = 3,234,755.43 × 640,343.46
  4. Step 4: Simplify right side
    2,156,691x = 2,071,354,484,299.99
  5. Step 5: Solve for x
    x = 2,071,354,484,299.99/2,156,691
  6. Step 6: Final answer
    x = 960,431.74

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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.