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Finding the Fourth Proportional to 303,361.52, 454,673.36 and 214,640.64

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Solution

The fourth proportional to 303,361.52, 454,673.36 and 214,640.64 is: 321,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,361.52 : 454,673.36 = 214,640.64 : x
  2. Step 2: Convert to fraction form
    303,361.52/454,673.36 = 214,640.64/x
  3. Step 3: Cross multiply
    303,361.52x = 454,673.36 × 214,640.64
  4. Step 4: Simplify right side
    303,361.52x = 97,591,380,981.35
  5. Step 5: Solve for x
    x = 97,591,380,981.35/303,361.52
  6. Step 6: Final answer
    x = 321,699.93

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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.