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Finding the Fourth Proportional to 1,621,899.90, 2,433,850.44 and 823,754.25

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Solution

The fourth proportional to 1,621,899.90, 2,433,850.44 and 823,754.25 is: 1,236,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,899.90 : 2,433,850.44 = 823,754.25 : x
  2. Step 2: Convert to fraction form
    1,621,899.90/2,433,850.44 = 823,754.25/x
  3. Step 3: Cross multiply
    1,621,899.90x = 2,433,850.44 × 823,754.25
  4. Step 4: Simplify right side
    1,621,899.90x = 2,004,894,643,814.37
  5. Step 5: Solve for x
    x = 2,004,894,643,814.37/1,621,899.90
  6. Step 6: Final answer
    x = 1,236,139.57

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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.