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Finding the Fourth Proportional to 453,633.44, 679,672.56 and 320,275.04

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Solution

The fourth proportional to 453,633.44, 679,672.56 and 320,275.04 is: 479,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,633.44 : 679,672.56 = 320,275.04 : x
  2. Step 2: Convert to fraction form
    453,633.44/679,672.56 = 320,275.04/x
  3. Step 3: Cross multiply
    453,633.44x = 679,672.56 × 320,275.04
  4. Step 4: Simplify right side
    453,633.44x = 217,682,156,340.90
  5. Step 5: Solve for x
    x = 217,682,156,340.90/453,633.44
  6. Step 6: Final answer
    x = 479,863.56

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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.