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Finding the Fourth Proportional to 398,763.42, 597,628.44 and 161,976.92

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Solution

The fourth proportional to 398,763.42, 597,628.44 and 161,976.92 is: 242,755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,763.42 : 597,628.44 = 161,976.92 : x
  2. Step 2: Convert to fraction form
    398,763.42/597,628.44 = 161,976.92/x
  3. Step 3: Cross multiply
    398,763.42x = 597,628.44 × 161,976.92
  4. Step 4: Simplify right side
    398,763.42x = 96,802,014,015.60
  5. Step 5: Solve for x
    x = 96,802,014,015.60/398,763.42
  6. Step 6: Final answer
    x = 242,755.50

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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.