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Finding the Fourth Proportional to 365,135.60, 503,910.77 and 203,991.51

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Solution

The fourth proportional to 365,135.60, 503,910.77 and 203,991.51 is: 281,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,135.60 : 503,910.77 = 203,991.51 : x
  2. Step 2: Convert to fraction form
    365,135.60/503,910.77 = 203,991.51/x
  3. Step 3: Cross multiply
    365,135.60x = 503,910.77 × 203,991.51
  4. Step 4: Simplify right side
    365,135.60x = 102,793,520,894.72
  5. Step 5: Solve for x
    x = 102,793,520,894.72/365,135.60
  6. Step 6: Final answer
    x = 281,521.50

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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.