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Finding the Fourth Proportional to 1,864,813.04, 2,797,629.24 and 1,107,346.40

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Solution

The fourth proportional to 1,864,813.04, 2,797,629.24 and 1,107,346.40 is: 1,661,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,813.04 : 2,797,629.24 = 1,107,346.40 : x
  2. Step 2: Convert to fraction form
    1,864,813.04/2,797,629.24 = 1,107,346.40/x
  3. Step 3: Cross multiply
    1,864,813.04x = 2,797,629.24 × 1,107,346.40
  4. Step 4: Simplify right side
    1,864,813.04x = 3,097,944,667,448.74
  5. Step 5: Solve for x
    x = 3,097,944,667,448.74/1,864,813.04
  6. Step 6: Final answer
    x = 1,661,262.87

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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.