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Finding the Fourth Proportional to 308,972.30, 433,183.30 and 308,972.30

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Solution

The fourth proportional to 308,972.30, 433,183.30 and 308,972.30 is: 433,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,972.30 : 433,183.30 = 308,972.30 : x
  2. Step 2: Convert to fraction form
    308,972.30/433,183.30 = 308,972.30/x
  3. Step 3: Cross multiply
    308,972.30x = 433,183.30 × 308,972.30
  4. Step 4: Simplify right side
    308,972.30x = 133,841,640,522.59
  5. Step 5: Solve for x
    x = 133,841,640,522.59/308,972.30
  6. Step 6: Final answer
    x = 433,183.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.