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Finding the Fourth Proportional to 531,327.06, 796,822.86 and 211,339.80

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Solution

The fourth proportional to 531,327.06, 796,822.86 and 211,339.80 is: 316,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,327.06 : 796,822.86 = 211,339.80 : x
  2. Step 2: Convert to fraction form
    531,327.06/796,822.86 = 211,339.80/x
  3. Step 3: Cross multiply
    531,327.06x = 796,822.86 × 211,339.80
  4. Step 4: Simplify right side
    531,327.06x = 168,400,383,867.83
  5. Step 5: Solve for x
    x = 168,400,383,867.83/531,327.06
  6. Step 6: Final answer
    x = 316,942.98

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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.