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Finding the Fourth Proportional to 2,888,487.88, 3,986,337.70 and 1,599,448.20

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Solution

The fourth proportional to 2,888,487.88, 3,986,337.70 and 1,599,448.20 is: 2,207,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888,487.88 : 3,986,337.70 = 1,599,448.20 : x
  2. Step 2: Convert to fraction form
    2,888,487.88/3,986,337.70 = 1,599,448.20/x
  3. Step 3: Cross multiply
    2,888,487.88x = 3,986,337.70 × 1,599,448.20
  4. Step 4: Simplify right side
    2,888,487.88x = 6,375,940,658,857.14
  5. Step 5: Solve for x
    x = 6,375,940,658,857.14/2,888,487.88
  6. Step 6: Final answer
    x = 2,207,362.79

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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.