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Finding the Fourth Proportional to 363,213.78, 544,639.02 and 135,432.24

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Solution

The fourth proportional to 363,213.78, 544,639.02 and 135,432.24 is: 203,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,213.78 : 544,639.02 = 135,432.24 : x
  2. Step 2: Convert to fraction form
    363,213.78/544,639.02 = 135,432.24/x
  3. Step 3: Cross multiply
    363,213.78x = 544,639.02 × 135,432.24
  4. Step 4: Simplify right side
    363,213.78x = 73,761,682,470.00
  5. Step 5: Solve for x
    x = 73,761,682,470.00/363,213.78
  6. Step 6: Final answer
    x = 203,080.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.