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Finding the Fourth Proportional to 505,039.42, 696,969.23 and 275,611.51

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Solution

The fourth proportional to 505,039.42, 696,969.23 and 275,611.51 is: 380,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,039.42 : 696,969.23 = 275,611.51 : x
  2. Step 2: Convert to fraction form
    505,039.42/696,969.23 = 275,611.51/x
  3. Step 3: Cross multiply
    505,039.42x = 696,969.23 × 275,611.51
  4. Step 4: Simplify right side
    505,039.42x = 192,092,741,396.99
  5. Step 5: Solve for x
    x = 192,092,741,396.99/505,039.42
  6. Step 6: Final answer
    x = 380,351.98

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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.