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Finding the Fourth Proportional to 393,577.95, 589,992.86 and 153,845.54

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Solution

The fourth proportional to 393,577.95, 589,992.86 and 153,845.54 is: 230,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,577.95 : 589,992.86 = 153,845.54 : x
  2. Step 2: Convert to fraction form
    393,577.95/589,992.86 = 153,845.54/x
  3. Step 3: Cross multiply
    393,577.95x = 589,992.86 × 153,845.54
  4. Step 4: Simplify right side
    393,577.95x = 90,767,770,142.84
  5. Step 5: Solve for x
    x = 90,767,770,142.84/393,577.95
  6. Step 6: Final answer
    x = 230,622.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.