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Finding the Fourth Proportional to 326,761.12, 450,896.40 and 219,309.28

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Solution

The fourth proportional to 326,761.12, 450,896.40 and 219,309.28 is: 302,624.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,761.12 : 450,896.40 = 219,309.28 : x
  2. Step 2: Convert to fraction form
    326,761.12/450,896.40 = 219,309.28/x
  3. Step 3: Cross multiply
    326,761.12x = 450,896.40 × 219,309.28
  4. Step 4: Simplify right side
    326,761.12x = 98,885,764,838.59
  5. Step 5: Solve for x
    x = 98,885,764,838.59/326,761.12
  6. Step 6: Final answer
    x = 302,624.02

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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.