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Finding the Fourth Proportional to 328,399.51, 453,191.20 and 177,496.51

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Solution

The fourth proportional to 328,399.51, 453,191.20 and 177,496.51 is: 244,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,399.51 : 453,191.20 = 177,496.51 : x
  2. Step 2: Convert to fraction form
    328,399.51/453,191.20 = 177,496.51/x
  3. Step 3: Cross multiply
    328,399.51x = 453,191.20 × 177,496.51
  4. Step 4: Simplify right side
    328,399.51x = 80,439,856,362.71
  5. Step 5: Solve for x
    x = 80,439,856,362.71/328,399.51
  6. Step 6: Final answer
    x = 244,945.12

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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.