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Finding the Fourth Proportional to 1,864,806.54, 2,797,619.49 and 1,107,339.90

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Solution

The fourth proportional to 1,864,806.54, 2,797,619.49 and 1,107,339.90 is: 1,661,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,806.54 : 2,797,619.49 = 1,107,339.90 : x
  2. Step 2: Convert to fraction form
    1,864,806.54/2,797,619.49 = 1,107,339.90/x
  3. Step 3: Cross multiply
    1,864,806.54x = 2,797,619.49 × 1,107,339.90
  4. Step 4: Simplify right side
    1,864,806.54x = 3,097,915,686,294.65
  5. Step 5: Solve for x
    x = 3,097,915,686,294.65/1,864,806.54
  6. Step 6: Final answer
    x = 1,661,253.12

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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.