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Finding the Fourth Proportional to 355,790.96, 490,991.30 and 194,646.04

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Solution

The fourth proportional to 355,790.96, 490,991.30 and 194,646.04 is: 268,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,790.96 : 490,991.30 = 194,646.04 : x
  2. Step 2: Convert to fraction form
    355,790.96/490,991.30 = 194,646.04/x
  3. Step 3: Cross multiply
    355,790.96x = 490,991.30 × 194,646.04
  4. Step 4: Simplify right side
    355,790.96x = 95,569,510,201.22
  5. Step 5: Solve for x
    x = 95,569,510,201.22/355,790.96
  6. Step 6: Final answer
    x = 268,611.41

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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.