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Finding the Fourth Proportional to 328,536.20, 453,379.95 and 177,633.20

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Solution

The fourth proportional to 328,536.20, 453,379.95 and 177,633.20 is: 245,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,536.20 : 453,379.95 = 177,633.20 : x
  2. Step 2: Convert to fraction form
    328,536.20/453,379.95 = 177,633.20/x
  3. Step 3: Cross multiply
    328,536.20x = 453,379.95 × 177,633.20
  4. Step 4: Simplify right side
    328,536.20x = 80,535,329,067.44
  5. Step 5: Solve for x
    x = 80,535,329,067.44/328,536.20
  6. Step 6: Final answer
    x = 245,133.81

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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.