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Finding the Fourth Proportional to 322,596.90, 445,208.66 and 193,540.21

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Solution

The fourth proportional to 322,596.90, 445,208.66 and 193,540.21 is: 267,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,596.90 : 445,208.66 = 193,540.21 : x
  2. Step 2: Convert to fraction form
    322,596.90/445,208.66 = 193,540.21/x
  3. Step 3: Cross multiply
    322,596.90x = 445,208.66 × 193,540.21
  4. Step 4: Simplify right side
    322,596.90x = 86,165,778,953.47
  5. Step 5: Solve for x
    x = 86,165,778,953.47/322,596.90
  6. Step 6: Final answer
    x = 267,100.45

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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.