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Finding the Fourth Proportional to 365,065.12, 503,775.12 and 203,917.60

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Solution

The fourth proportional to 365,065.12, 503,775.12 and 203,917.60 is: 281,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,065.12 : 503,775.12 = 203,917.60 : x
  2. Step 2: Convert to fraction form
    365,065.12/503,775.12 = 203,917.60/x
  3. Step 3: Cross multiply
    365,065.12x = 503,775.12 × 203,917.60
  4. Step 4: Simplify right side
    365,065.12x = 102,728,613,410.11
  5. Step 5: Solve for x
    x = 102,728,613,410.11/365,065.12
  6. Step 6: Final answer
    x = 281,398.05

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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.