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Finding the Fourth Proportional to 483,447.28, 666,942.60 and 322,144.96

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Solution

The fourth proportional to 483,447.28, 666,942.60 and 322,144.96 is: 444,417.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,447.28 : 666,942.60 = 322,144.96 : x
  2. Step 2: Convert to fraction form
    483,447.28/666,942.60 = 322,144.96/x
  3. Step 3: Cross multiply
    483,447.28x = 666,942.60 × 322,144.96
  4. Step 4: Simplify right side
    483,447.28x = 214,852,197,199.30
  5. Step 5: Solve for x
    x = 214,852,197,199.30/483,447.28
  6. Step 6: Final answer
    x = 444,417.02

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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.