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Finding the Fourth Proportional to 352,969.15, 486,918.10 and 230,533.26

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Solution

The fourth proportional to 352,969.15, 486,918.10 and 230,533.26 is: 318,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,969.15 : 486,918.10 = 230,533.26 : x
  2. Step 2: Convert to fraction form
    352,969.15/486,918.10 = 230,533.26/x
  3. Step 3: Cross multiply
    352,969.15x = 486,918.10 × 230,533.26
  4. Step 4: Simplify right side
    352,969.15x = 112,250,816,489.85
  5. Step 5: Solve for x
    x = 112,250,816,489.85/352,969.15
  6. Step 6: Final answer
    x = 318,018.78

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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.