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Finding the Fourth Proportional to 297,919.94, 411,132.19 and 161,954.15

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Solution

The fourth proportional to 297,919.94, 411,132.19 and 161,954.15 is: 223,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,919.94 : 411,132.19 = 161,954.15 : x
  2. Step 2: Convert to fraction form
    297,919.94/411,132.19 = 161,954.15/x
  3. Step 3: Cross multiply
    297,919.94x = 411,132.19 × 161,954.15
  4. Step 4: Simplify right side
    297,919.94x = 66,584,561,503.66
  5. Step 5: Solve for x
    x = 66,584,561,503.66/297,919.94
  6. Step 6: Final answer
    x = 223,498.17

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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.