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Finding the Fourth Proportional to 328,318.30, 453,079.11 and 177,415.30

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Solution

The fourth proportional to 328,318.30, 453,079.11 and 177,415.30 is: 244,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,318.30 : 453,079.11 = 177,415.30 : x
  2. Step 2: Convert to fraction form
    328,318.30/453,079.11 = 177,415.30/x
  3. Step 3: Cross multiply
    328,318.30x = 453,079.11 × 177,415.30
  4. Step 4: Simplify right side
    328,318.30x = 80,383,166,224.38
  5. Step 5: Solve for x
    x = 80,383,166,224.38/328,318.30
  6. Step 6: Final answer
    x = 244,833.04

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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.