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Finding the Fourth Proportional to 303,795.40, 455,474.40 and 170,716.45

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Solution

The fourth proportional to 303,795.40, 455,474.40 and 170,716.45 is: 255,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,795.40 : 455,474.40 = 170,716.45 : x
  2. Step 2: Convert to fraction form
    303,795.40/455,474.40 = 170,716.45/x
  3. Step 3: Cross multiply
    303,795.40x = 455,474.40 × 170,716.45
  4. Step 4: Simplify right side
    303,795.40x = 77,756,972,633.88
  5. Step 5: Solve for x
    x = 77,756,972,633.88/303,795.40
  6. Step 6: Final answer
    x = 255,951.78

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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.