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Finding the Fourth Proportional to 328,415.60, 453,213.27 and 177,512.60

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Solution

The fourth proportional to 328,415.60, 453,213.27 and 177,512.60 is: 244,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,415.60 : 453,213.27 = 177,512.60 : x
  2. Step 2: Convert to fraction form
    328,415.60/453,213.27 = 177,512.60/x
  3. Step 3: Cross multiply
    328,415.60x = 453,213.27 × 177,512.60
  4. Step 4: Simplify right side
    328,415.60x = 80,451,063,646.14
  5. Step 5: Solve for x
    x = 80,451,063,646.14/328,415.60
  6. Step 6: Final answer
    x = 244,967.25

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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.