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Finding the Fourth Proportional to 344,034.36, 474,778.49 and 191,074.39

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Solution

The fourth proportional to 344,034.36, 474,778.49 and 191,074.39 is: 263,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,034.36 : 474,778.49 = 191,074.39 : x
  2. Step 2: Convert to fraction form
    344,034.36/474,778.49 = 191,074.39/x
  3. Step 3: Cross multiply
    344,034.36x = 474,778.49 × 191,074.39
  4. Step 4: Simplify right side
    344,034.36x = 90,718,010,361.87
  5. Step 5: Solve for x
    x = 90,718,010,361.87/344,034.36
  6. Step 6: Final answer
    x = 263,688.81

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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.