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Finding the Fourth Proportional to 394,820.44, 544,852.20 and 213,532.37

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Solution

The fourth proportional to 394,820.44, 544,852.20 and 213,532.37 is: 294,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,820.44 : 544,852.20 = 213,532.37 : x
  2. Step 2: Convert to fraction form
    394,820.44/544,852.20 = 213,532.37/x
  3. Step 3: Cross multiply
    394,820.44x = 544,852.20 × 213,532.37
  4. Step 4: Simplify right side
    394,820.44x = 116,343,578,841.45
  5. Step 5: Solve for x
    x = 116,343,578,841.45/394,820.44
  6. Step 6: Final answer
    x = 294,674.66

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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.