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Finding the Fourth Proportional to 483,449.28, 666,945.36 and 322,146.96

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Solution

The fourth proportional to 483,449.28, 666,945.36 and 322,146.96 is: 444,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,449.28 : 666,945.36 = 322,146.96 : x
  2. Step 2: Convert to fraction form
    483,449.28/666,945.36 = 322,146.96/x
  3. Step 3: Cross multiply
    483,449.28x = 666,945.36 × 322,146.96
  4. Step 4: Simplify right side
    483,449.28x = 214,854,420,210.11
  5. Step 5: Solve for x
    x = 214,854,420,210.11/483,449.28
  6. Step 6: Final answer
    x = 444,419.77

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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.