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Finding the Fourth Proportional to 328,418.28, 453,217.26 and 177,515.28

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Solution

The fourth proportional to 328,418.28, 453,217.26 and 177,515.28 is: 244,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,418.28 : 453,217.26 = 177,515.28 : x
  2. Step 2: Convert to fraction form
    328,418.28/453,217.26 = 177,515.28/x
  3. Step 3: Cross multiply
    328,418.28x = 453,217.26 × 177,515.28
  4. Step 4: Simplify right side
    328,418.28x = 80,452,988,809.73
  5. Step 5: Solve for x
    x = 80,452,988,809.73/328,418.28
  6. Step 6: Final answer
    x = 244,971.10

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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.