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Finding the Fourth Proportional to 405,653.67, 559,850.94 and 235,887.80

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Solution

The fourth proportional to 405,653.67, 559,850.94 and 235,887.80 is: 325,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,653.67 : 559,850.94 = 235,887.80 : x
  2. Step 2: Convert to fraction form
    405,653.67/559,850.94 = 235,887.80/x
  3. Step 3: Cross multiply
    405,653.67x = 559,850.94 × 235,887.80
  4. Step 4: Simplify right side
    405,653.67x = 132,062,003,765.28
  5. Step 5: Solve for x
    x = 132,062,003,765.28/405,653.67
  6. Step 6: Final answer
    x = 325,553.58

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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.