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Finding the Fourth Proportional to 328,128.38, 452,817.47 and 177,225.38

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Solution

The fourth proportional to 328,128.38, 452,817.47 and 177,225.38 is: 244,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,128.38 : 452,817.47 = 177,225.38 : x
  2. Step 2: Convert to fraction form
    328,128.38/452,817.47 = 177,225.38/x
  3. Step 3: Cross multiply
    328,128.38x = 452,817.47 × 177,225.38
  4. Step 4: Simplify right side
    328,128.38x = 80,250,745,041.17
  5. Step 5: Solve for x
    x = 80,250,745,041.17/328,128.38
  6. Step 6: Final answer
    x = 244,571.18

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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.