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Finding the Fourth Proportional to 453,635.10, 679,796.55 and 200,708.55

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Solution

The fourth proportional to 453,635.10, 679,796.55 and 200,708.55 is: 300,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,635.10 : 679,796.55 = 200,708.55 : x
  2. Step 2: Convert to fraction form
    453,635.10/679,796.55 = 200,708.55/x
  3. Step 3: Cross multiply
    453,635.10x = 679,796.55 × 200,708.55
  4. Step 4: Simplify right side
    453,635.10x = 136,440,979,845.50
  5. Step 5: Solve for x
    x = 136,440,979,845.50/453,635.10
  6. Step 6: Final answer
    x = 300,772.54

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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.