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Finding the Fourth Proportional to 328,872.20, 453,845.04 and 177,969.20

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Solution

The fourth proportional to 328,872.20, 453,845.04 and 177,969.20 is: 245,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,872.20 : 453,845.04 = 177,969.20 : x
  2. Step 2: Convert to fraction form
    328,872.20/453,845.04 = 177,969.20/x
  3. Step 3: Cross multiply
    328,872.20x = 453,845.04 × 177,969.20
  4. Step 4: Simplify right side
    328,872.20x = 80,770,438,692.77
  5. Step 5: Solve for x
    x = 80,770,438,692.77/328,872.20
  6. Step 6: Final answer
    x = 245,598.26

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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.