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Finding the Fourth Proportional to 523,958.36, 723,062.55 and 285,494.36

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Solution

The fourth proportional to 523,958.36, 723,062.55 and 285,494.36 is: 393,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,958.36 : 723,062.55 = 285,494.36 : x
  2. Step 2: Convert to fraction form
    523,958.36/723,062.55 = 285,494.36/x
  3. Step 3: Cross multiply
    523,958.36x = 723,062.55 × 285,494.36
  4. Step 4: Simplify right side
    523,958.36x = 206,430,279,952.22
  5. Step 5: Solve for x
    x = 206,430,279,952.22/523,958.36
  6. Step 6: Final answer
    x = 393,982.22

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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.