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Finding the Fourth Proportional to 2,632,579.88, 3,948,869.88 and 638,035.88

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Solution

The fourth proportional to 2,632,579.88, 3,948,869.88 and 638,035.88 is: 957,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632,579.88 : 3,948,869.88 = 638,035.88 : x
  2. Step 2: Convert to fraction form
    2,632,579.88/3,948,869.88 = 638,035.88/x
  3. Step 3: Cross multiply
    2,632,579.88x = 3,948,869.88 × 638,035.88
  4. Step 4: Simplify right side
    2,632,579.88x = 2,519,520,649,146.94
  5. Step 5: Solve for x
    x = 2,519,520,649,146.94/2,632,579.88
  6. Step 6: Final answer
    x = 957,053.83

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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.