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Finding the Fourth Proportional to 394,989.60, 592,622.64 and 114,523.68

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Solution

The fourth proportional to 394,989.60, 592,622.64 and 114,523.68 is: 171,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,989.60 : 592,622.64 = 114,523.68 : x
  2. Step 2: Convert to fraction form
    394,989.60/592,622.64 = 114,523.68/x
  3. Step 3: Cross multiply
    394,989.60x = 592,622.64 × 114,523.68
  4. Step 4: Simplify right side
    394,989.60x = 67,869,325,584.12
  5. Step 5: Solve for x
    x = 67,869,325,584.12/394,989.60
  6. Step 6: Final answer
    x = 171,825.60

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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.