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Finding the Fourth Proportional to 328,717.80, 453,630.57 and 177,814.80

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Solution

The fourth proportional to 328,717.80, 453,630.57 and 177,814.80 is: 245,384.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,717.80 : 453,630.57 = 177,814.80 : x
  2. Step 2: Convert to fraction form
    328,717.80/453,630.57 = 177,814.80/x
  3. Step 3: Cross multiply
    328,717.80x = 453,630.57 × 177,814.80
  4. Step 4: Simplify right side
    328,717.80x = 80,662,229,078.44
  5. Step 5: Solve for x
    x = 80,662,229,078.44/328,717.80
  6. Step 6: Final answer
    x = 245,384.43

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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.