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Finding the Fourth Proportional to 591,015.16, 886,610.22 and 217,009

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Solution

The fourth proportional to 591,015.16, 886,610.22 and 217,009 is: 325,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,015.16 : 886,610.22 = 217,009 : x
  2. Step 2: Convert to fraction form
    591,015.16/886,610.22 = 217,009/x
  3. Step 3: Cross multiply
    591,015.16x = 886,610.22 × 217,009
  4. Step 4: Simplify right side
    591,015.16x = 192,402,397,231.98
  5. Step 5: Solve for x
    x = 192,402,397,231.98/591,015.16
  6. Step 6: Final answer
    x = 325,545.62

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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.