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Finding the Fourth Proportional to 372,912.48, 514,622.52 and 211,770.84

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Solution

The fourth proportional to 372,912.48, 514,622.52 and 211,770.84 is: 292,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,912.48 : 514,622.52 = 211,770.84 : x
  2. Step 2: Convert to fraction form
    372,912.48/514,622.52 = 211,770.84/x
  3. Step 3: Cross multiply
    372,912.48x = 514,622.52 × 211,770.84
  4. Step 4: Simplify right side
    372,912.48x = 108,982,043,343.32
  5. Step 5: Solve for x
    x = 108,982,043,343.32/372,912.48
  6. Step 6: Final answer
    x = 292,245.63

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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.