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Finding the Fourth Proportional to 328,991.76, 453,773.88 and 206,519.76

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Solution

The fourth proportional to 328,991.76, 453,773.88 and 206,519.76 is: 284,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,991.76 : 453,773.88 = 206,519.76 : x
  2. Step 2: Convert to fraction form
    328,991.76/453,773.88 = 206,519.76/x
  3. Step 3: Cross multiply
    328,991.76x = 453,773.88 × 206,519.76
  4. Step 4: Simplify right side
    328,991.76x = 93,713,272,791.87
  5. Step 5: Solve for x
    x = 93,713,272,791.87/328,991.76
  6. Step 6: Final answer
    x = 284,849.91

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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.