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Finding the Fourth Proportional to 5,248,999.82, 7,873,499.82 and 1,259,911.82

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Solution

The fourth proportional to 5,248,999.82, 7,873,499.82 and 1,259,911.82 is: 1,889,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248,999.82 : 7,873,499.82 = 1,259,911.82 : x
  2. Step 2: Convert to fraction form
    5,248,999.82/7,873,499.82 = 1,259,911.82/x
  3. Step 3: Cross multiply
    5,248,999.82x = 7,873,499.82 × 1,259,911.82
  4. Step 4: Simplify right side
    5,248,999.82x = 9,919,915,448,618.37
  5. Step 5: Solve for x
    x = 9,919,915,448,618.37/5,248,999.82
  6. Step 6: Final answer
    x = 1,889,867.75

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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.