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Finding the Fourth Proportional to 405,896.67, 560,250 and 236,163.60

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Solution

The fourth proportional to 405,896.67, 560,250 and 236,163.60 is: 325,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,896.67 : 560,250 = 236,163.60 : x
  2. Step 2: Convert to fraction form
    405,896.67/560,250 = 236,163.60/x
  3. Step 3: Cross multiply
    405,896.67x = 560,250 × 236,163.60
  4. Step 4: Simplify right side
    405,896.67x = 132,310,656,900
  5. Step 5: Solve for x
    x = 132,310,656,900/405,896.67
  6. Step 6: Final answer
    x = 325,971.28

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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.