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Finding the Fourth Proportional to 328,672.56, 453,568.17 and 177,769.56

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Solution

The fourth proportional to 328,672.56, 453,568.17 and 177,769.56 is: 245,322.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,672.56 : 453,568.17 = 177,769.56 : x
  2. Step 2: Convert to fraction form
    328,672.56/453,568.17 = 177,769.56/x
  3. Step 3: Cross multiply
    328,672.56x = 453,568.17 × 177,769.56
  4. Step 4: Simplify right side
    328,672.56x = 80,630,614,010.91
  5. Step 5: Solve for x
    x = 80,630,614,010.91/328,672.56
  6. Step 6: Final answer
    x = 245,322.01

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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.