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Finding the Fourth Proportional to 5,195,605.80, 7,789,722.30 and 2,357,077.80

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Solution

The fourth proportional to 5,195,605.80, 7,789,722.30 and 2,357,077.80 is: 3,533,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195,605.80 : 7,789,722.30 = 2,357,077.80 : x
  2. Step 2: Convert to fraction form
    5,195,605.80/7,789,722.30 = 2,357,077.80/x
  3. Step 3: Cross multiply
    5,195,605.80x = 7,789,722.30 × 2,357,077.80
  4. Step 4: Simplify right side
    5,195,605.80x = 18,360,981,501,494.94
  5. Step 5: Solve for x
    x = 18,360,981,501,494.94/5,195,605.80
  6. Step 6: Final answer
    x = 3,533,944.30

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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.