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Finding the Fourth Proportional to 5,765,290.92, 7,955,789.19 and 3,186,805.59

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Solution

The fourth proportional to 5,765,290.92, 7,955,789.19 and 3,186,805.59 is: 4,397,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765,290.92 : 7,955,789.19 = 3,186,805.59 : x
  2. Step 2: Convert to fraction form
    5,765,290.92/7,955,789.19 = 3,186,805.59/x
  3. Step 3: Cross multiply
    5,765,290.92x = 7,955,789.19 × 3,186,805.59
  4. Step 4: Simplify right side
    5,765,290.92x = 25,353,553,463,553.57
  5. Step 5: Solve for x
    x = 25,353,553,463,553.57/5,765,290.92
  6. Step 6: Final answer
    x = 4,397,619.10

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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.