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Finding the Fourth Proportional to 531,910.20, 797,200.02 and 265,745.28

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Solution

The fourth proportional to 531,910.20, 797,200.02 and 265,745.28 is: 398,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,910.20 : 797,200.02 = 265,745.28 : x
  2. Step 2: Convert to fraction form
    531,910.20/797,200.02 = 265,745.28/x
  3. Step 3: Cross multiply
    531,910.20x = 797,200.02 × 265,745.28
  4. Step 4: Simplify right side
    531,910.20x = 211,852,142,530.91
  5. Step 5: Solve for x
    x = 211,852,142,530.91/531,910.20
  6. Step 6: Final answer
    x = 398,285.54

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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.