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Finding the Fourth Proportional to 308,933.70, 463,400.55 and 248,799.30

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Solution

The fourth proportional to 308,933.70, 463,400.55 and 248,799.30 is: 373,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,933.70 : 463,400.55 = 248,799.30 : x
  2. Step 2: Convert to fraction form
    308,933.70/463,400.55 = 248,799.30/x
  3. Step 3: Cross multiply
    308,933.70x = 463,400.55 × 248,799.30
  4. Step 4: Simplify right side
    308,933.70x = 115,293,732,459.62
  5. Step 5: Solve for x
    x = 115,293,732,459.62/308,933.70
  6. Step 6: Final answer
    x = 373,198.95

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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.