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Finding the Fourth Proportional to 340,995.44, 470,556.60 and 190,063.28

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Solution

The fourth proportional to 340,995.44, 470,556.60 and 190,063.28 is: 262,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,995.44 : 470,556.60 = 190,063.28 : x
  2. Step 2: Convert to fraction form
    340,995.44/470,556.60 = 190,063.28/x
  3. Step 3: Cross multiply
    340,995.44x = 470,556.60 × 190,063.28
  4. Step 4: Simplify right side
    340,995.44x = 89,435,530,821.65
  5. Step 5: Solve for x
    x = 89,435,530,821.65/340,995.44
  6. Step 6: Final answer
    x = 262,277.79

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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.