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Finding the Fourth Proportional to 3,927,791.07, 5,891,441.93 and 1,879,906.14

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Solution

The fourth proportional to 3,927,791.07, 5,891,441.93 and 1,879,906.14 is: 2,819,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927,791.07 : 5,891,441.93 = 1,879,906.14 : x
  2. Step 2: Convert to fraction form
    3,927,791.07/5,891,441.93 = 1,879,906.14/x
  3. Step 3: Cross multiply
    3,927,791.07x = 5,891,441.93 × 1,879,906.14
  4. Step 4: Simplify right side
    3,927,791.07x = 11,075,357,848,260.92
  5. Step 5: Solve for x
    x = 11,075,357,848,260.92/3,927,791.07
  6. Step 6: Final answer
    x = 2,819,742.10

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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.