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Finding the Fourth Proportional to 365,086.91, 503,783.79 and 203,938.49

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Solution

The fourth proportional to 365,086.91, 503,783.79 and 203,938.49 is: 281,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,086.91 : 503,783.79 = 203,938.49 : x
  2. Step 2: Convert to fraction form
    365,086.91/503,783.79 = 203,938.49/x
  3. Step 3: Cross multiply
    365,086.91x = 503,783.79 × 203,938.49
  4. Step 4: Simplify right side
    365,086.91x = 102,740,905,419.08
  5. Step 5: Solve for x
    x = 102,740,905,419.08/365,086.91
  6. Step 6: Final answer
    x = 281,414.93

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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.