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Finding the Fourth Proportional to 1,870,161.03, 2,579,625.50 and 1,296,992.07

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Solution

The fourth proportional to 1,870,161.03, 2,579,625.50 and 1,296,992.07 is: 1,789,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,161.03 : 2,579,625.50 = 1,296,992.07 : x
  2. Step 2: Convert to fraction form
    1,870,161.03/2,579,625.50 = 1,296,992.07/x
  3. Step 3: Cross multiply
    1,870,161.03x = 2,579,625.50 × 1,296,992.07
  4. Step 4: Simplify right side
    1,870,161.03x = 3,345,753,810,584.83
  5. Step 5: Solve for x
    x = 3,345,753,810,584.83/1,870,161.03
  6. Step 6: Final answer
    x = 1,789,019.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.