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Finding the Fourth Proportional to 326,838.78, 450,957.92 and 190,795.23

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Solution

The fourth proportional to 326,838.78, 450,957.92 and 190,795.23 is: 263,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,838.78 : 450,957.92 = 190,795.23 : x
  2. Step 2: Convert to fraction form
    326,838.78/450,957.92 = 190,795.23/x
  3. Step 3: Cross multiply
    326,838.78x = 450,957.92 × 190,795.23
  4. Step 4: Simplify right side
    326,838.78x = 86,040,619,112.75
  5. Step 5: Solve for x
    x = 86,040,619,112.75/326,838.78
  6. Step 6: Final answer
    x = 263,250.95

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1.5x scale

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.