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Finding the Fourth Proportional to 326,007.38, 449,891.82 and 190,135.55

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Solution

The fourth proportional to 326,007.38, 449,891.82 and 190,135.55 is: 262,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,007.38 : 449,891.82 = 190,135.55 : x
  2. Step 2: Convert to fraction form
    326,007.38/449,891.82 = 190,135.55/x
  3. Step 3: Cross multiply
    326,007.38x = 449,891.82 × 190,135.55
  4. Step 4: Simplify right side
    326,007.38x = 85,540,426,386.74
  5. Step 5: Solve for x
    x = 85,540,426,386.74/326,007.38
  6. Step 6: Final answer
    x = 262,388.01

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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.