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Finding the Fourth Proportional to 355,160.20, 533,906.70 and 303,838.60

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Solution

The fourth proportional to 355,160.20, 533,906.70 and 303,838.60 is: 456,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,160.20 : 533,906.70 = 303,838.60 : x
  2. Step 2: Convert to fraction form
    355,160.20/533,906.70 = 303,838.60/x
  3. Step 3: Cross multiply
    355,160.20x = 533,906.70 × 303,838.60
  4. Step 4: Simplify right side
    355,160.20x = 162,221,464,258.62
  5. Step 5: Solve for x
    x = 162,221,464,258.62/355,160.20
  6. Step 6: Final answer
    x = 456,755.75

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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.