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Finding the Fourth Proportional to 328,528.56, 453,369.60 and 177,625.44

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Solution

The fourth proportional to 328,528.56, 453,369.60 and 177,625.44 is: 245,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,528.56 : 453,369.60 = 177,625.44 : x
  2. Step 2: Convert to fraction form
    328,528.56/453,369.60 = 177,625.44/x
  3. Step 3: Cross multiply
    328,528.56x = 453,369.60 × 177,625.44
  4. Step 4: Simplify right side
    328,528.56x = 80,529,974,682.62
  5. Step 5: Solve for x
    x = 80,529,974,682.62/328,528.56
  6. Step 6: Final answer
    x = 245,123.21

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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.