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Finding the Fourth Proportional to 290,797.57, 401,241.24 and 169,915.50

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Solution

The fourth proportional to 290,797.57, 401,241.24 and 169,915.50 is: 234,448.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,797.57 : 401,241.24 = 169,915.50 : x
  2. Step 2: Convert to fraction form
    290,797.57/401,241.24 = 169,915.50/x
  3. Step 3: Cross multiply
    290,797.57x = 401,241.24 × 169,915.50
  4. Step 4: Simplify right side
    290,797.57x = 68,177,107,206.36
  5. Step 5: Solve for x
    x = 68,177,107,206.36/290,797.57
  6. Step 6: Final answer
    x = 234,448.68

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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.