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Finding the Fourth Proportional to 1,932,846.48, 2,668,662.54 and 1,208,019.99

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Solution

The fourth proportional to 1,932,846.48, 2,668,662.54 and 1,208,019.99 is: 1,667,901.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932,846.48 : 2,668,662.54 = 1,208,019.99 : x
  2. Step 2: Convert to fraction form
    1,932,846.48/2,668,662.54 = 1,208,019.99/x
  3. Step 3: Cross multiply
    1,932,846.48x = 2,668,662.54 × 1,208,019.99
  4. Step 4: Simplify right side
    1,932,846.48x = 3,223,797,694,884.18
  5. Step 5: Solve for x
    x = 3,223,797,694,884.18/1,932,846.48
  6. Step 6: Final answer
    x = 1,667,901.58

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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.