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Finding the Fourth Proportional to 303,584.20, 455,376.30 and 203,792.20

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Solution

The fourth proportional to 303,584.20, 455,376.30 and 203,792.20 is: 305,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,584.20 : 455,376.30 = 203,792.20 : x
  2. Step 2: Convert to fraction form
    303,584.20/455,376.30 = 203,792.20/x
  3. Step 3: Cross multiply
    303,584.20x = 455,376.30 × 203,792.20
  4. Step 4: Simplify right side
    303,584.20x = 92,802,138,004.86
  5. Step 5: Solve for x
    x = 92,802,138,004.86/303,584.20
  6. Step 6: Final answer
    x = 305,688.30

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Similar ratio
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1.5x scale

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.