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Finding the Fourth Proportional to 2,621,463.89, 3,932,335.97 and 824,487.48

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Solution

The fourth proportional to 2,621,463.89, 3,932,335.97 and 824,487.48 is: 1,236,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,463.89 : 3,932,335.97 = 824,487.48 : x
  2. Step 2: Convert to fraction form
    2,621,463.89/3,932,335.97 = 824,487.48/x
  3. Step 3: Cross multiply
    2,621,463.89x = 3,932,335.97 × 824,487.48
  4. Step 4: Simplify right side
    2,621,463.89x = 3,242,161,770,296.22
  5. Step 5: Solve for x
    x = 3,242,161,770,296.22/2,621,463.89
  6. Step 6: Final answer
    x = 1,236,775.30

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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.