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Finding the Fourth Proportional to 453,488.15, 679,996.92 and 133,598.50

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Solution

The fourth proportional to 453,488.15, 679,996.92 and 133,598.50 is: 200,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,488.15 : 679,996.92 = 133,598.50 : x
  2. Step 2: Convert to fraction form
    453,488.15/679,996.92 = 133,598.50/x
  3. Step 3: Cross multiply
    453,488.15x = 679,996.92 × 133,598.50
  4. Step 4: Simplify right side
    453,488.15x = 90,846,568,516.62
  5. Step 5: Solve for x
    x = 90,846,568,516.62/453,488.15
  6. Step 6: Final answer
    x = 200,328.43

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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.