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Finding the Fourth Proportional to 1,944,230.40, 2,915,078.40 and 1,745,164.80

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Solution

The fourth proportional to 1,944,230.40, 2,915,078.40 and 1,745,164.80 is: 2,616,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944,230.40 : 2,915,078.40 = 1,745,164.80 : x
  2. Step 2: Convert to fraction form
    1,944,230.40/2,915,078.40 = 1,745,164.80/x
  3. Step 3: Cross multiply
    1,944,230.40x = 2,915,078.40 × 1,745,164.80
  4. Step 4: Simplify right side
    1,944,230.40x = 5,087,292,212,920.32
  5. Step 5: Solve for x
    x = 5,087,292,212,920.32/1,944,230.40
  6. Step 6: Final answer
    x = 2,616,609.75

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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.