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Finding the Fourth Proportional to 483,268.64, 724,755 and 230,415.80

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Solution

The fourth proportional to 483,268.64, 724,755 and 230,415.80 is: 345,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,268.64 : 724,755 = 230,415.80 : x
  2. Step 2: Convert to fraction form
    483,268.64/724,755 = 230,415.80/x
  3. Step 3: Cross multiply
    483,268.64x = 724,755 × 230,415.80
  4. Step 4: Simplify right side
    483,268.64x = 166,995,003,129
  5. Step 5: Solve for x
    x = 166,995,003,129/483,268.64
  6. Step 6: Final answer
    x = 345,553.15

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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.