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Finding the Fourth Proportional to 283,989.44, 391,896.48 and 161,495.12

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Solution

The fourth proportional to 283,989.44, 391,896.48 and 161,495.12 is: 222,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,989.44 : 391,896.48 = 161,495.12 : x
  2. Step 2: Convert to fraction form
    283,989.44/391,896.48 = 161,495.12/x
  3. Step 3: Cross multiply
    283,989.44x = 391,896.48 × 161,495.12
  4. Step 4: Simplify right side
    283,989.44x = 63,289,369,065.18
  5. Step 5: Solve for x
    x = 63,289,369,065.18/283,989.44
  6. Step 6: Final answer
    x = 222,858.18

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1.5x scale

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.