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Finding the Fourth Proportional to 365,143.33, 503,921.48 and 203,999.30

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Solution

The fourth proportional to 365,143.33, 503,921.48 and 203,999.30 is: 281,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,143.33 : 503,921.48 = 203,999.30 : x
  2. Step 2: Convert to fraction form
    365,143.33/503,921.48 = 203,999.30/x
  3. Step 3: Cross multiply
    365,143.33x = 503,921.48 × 203,999.30
  4. Step 4: Simplify right side
    365,143.33x = 102,799,629,174.96
  5. Step 5: Solve for x
    x = 102,799,629,174.96/365,143.33
  6. Step 6: Final answer
    x = 281,532.27

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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.