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Finding the Fourth Proportional to 409,233.60, 613,850.40 and 172,843.20

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Solution

The fourth proportional to 409,233.60, 613,850.40 and 172,843.20 is: 259,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,233.60 : 613,850.40 = 172,843.20 : x
  2. Step 2: Convert to fraction form
    409,233.60/613,850.40 = 172,843.20/x
  3. Step 3: Cross multiply
    409,233.60x = 613,850.40 × 172,843.20
  4. Step 4: Simplify right side
    409,233.60x = 106,099,867,457.28
  5. Step 5: Solve for x
    x = 106,099,867,457.28/409,233.60
  6. Step 6: Final answer
    x = 259,264.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.