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Finding the Fourth Proportional to 1,870,162.03, 2,579,626.87 and 1,296,993.07

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Solution

The fourth proportional to 1,870,162.03, 2,579,626.87 and 1,296,993.07 is: 1,789,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,162.03 : 2,579,626.87 = 1,296,993.07 : x
  2. Step 2: Convert to fraction form
    1,870,162.03/2,579,626.87 = 1,296,993.07/x
  3. Step 3: Cross multiply
    1,870,162.03x = 2,579,626.87 × 1,296,993.07
  4. Step 4: Simplify right side
    1,870,162.03x = 3,345,758,173,575.79
  5. Step 5: Solve for x
    x = 3,345,758,173,575.79/1,870,162.03
  6. Step 6: Final answer
    x = 1,789,020.48

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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.