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Finding the Fourth Proportional to 290,250.60, 400,546.58 and 161,189.16

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Solution

The fourth proportional to 290,250.60, 400,546.58 and 161,189.16 is: 222,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,250.60 : 400,546.58 = 161,189.16 : x
  2. Step 2: Convert to fraction form
    290,250.60/400,546.58 = 161,189.16/x
  3. Step 3: Cross multiply
    290,250.60x = 400,546.58 × 161,189.16
  4. Step 4: Simplify right side
    290,250.60x = 64,563,766,771.07
  5. Step 5: Solve for x
    x = 64,563,766,771.07/290,250.60
  6. Step 6: Final answer
    x = 222,441.46

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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.