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Finding the Fourth Proportional to 2,409,427.12, 3,324,978.39 and 1,376,923.09

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Solution

The fourth proportional to 2,409,427.12, 3,324,978.39 and 1,376,923.09 is: 1,900,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409,427.12 : 3,324,978.39 = 1,376,923.09 : x
  2. Step 2: Convert to fraction form
    2,409,427.12/3,324,978.39 = 1,376,923.09/x
  3. Step 3: Cross multiply
    2,409,427.12x = 3,324,978.39 × 1,376,923.09
  4. Step 4: Simplify right side
    2,409,427.12x = 4,578,239,518,942.03
  5. Step 5: Solve for x
    x = 4,578,239,518,942.03/2,409,427.12
  6. Step 6: Final answer
    x = 1,900,136.13

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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.