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Finding the Fourth Proportional to 325,949.70, 488,924.55 and 276,742.20

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Solution

The fourth proportional to 325,949.70, 488,924.55 and 276,742.20 is: 415,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,949.70 : 488,924.55 = 276,742.20 : x
  2. Step 2: Convert to fraction form
    325,949.70/488,924.55 = 276,742.20/x
  3. Step 3: Cross multiply
    325,949.70x = 488,924.55 × 276,742.20
  4. Step 4: Simplify right side
    325,949.70x = 135,306,055,601.01
  5. Step 5: Solve for x
    x = 135,306,055,601.01/325,949.70
  6. Step 6: Final answer
    x = 415,113.30

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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.