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Finding the Fourth Proportional to 215,449.85, 324,788.15 and 200,999.24

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Solution

The fourth proportional to 215,449.85, 324,788.15 and 200,999.24 is: 303,004.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,449.85 : 324,788.15 = 200,999.24 : x
  2. Step 2: Convert to fraction form
    215,449.85/324,788.15 = 200,999.24/x
  3. Step 3: Cross multiply
    215,449.85x = 324,788.15 × 200,999.24
  4. Step 4: Simplify right side
    215,449.85x = 65,282,168,682.07
  5. Step 5: Solve for x
    x = 65,282,168,682.07/215,449.85
  6. Step 6: Final answer
    x = 303,004.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.