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Finding the Fourth Proportional to 483,590.70, 667,164.09 and 279,604.26

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Solution

The fourth proportional to 483,590.70, 667,164.09 and 279,604.26 is: 385,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,590.70 : 667,164.09 = 279,604.26 : x
  2. Step 2: Convert to fraction form
    483,590.70/667,164.09 = 279,604.26/x
  3. Step 3: Cross multiply
    483,590.70x = 667,164.09 × 279,604.26
  4. Step 4: Simplify right side
    483,590.70x = 186,541,921,683.02
  5. Step 5: Solve for x
    x = 186,541,921,683.02/483,590.70
  6. Step 6: Final answer
    x = 385,743.40

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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.