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Finding the Fourth Proportional to 308,957.70, 463,436.55 and 248,823.30

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Solution

The fourth proportional to 308,957.70, 463,436.55 and 248,823.30 is: 373,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,957.70 : 463,436.55 = 248,823.30 : x
  2. Step 2: Convert to fraction form
    308,957.70/463,436.55 = 248,823.30/x
  3. Step 3: Cross multiply
    308,957.70x = 463,436.55 × 248,823.30
  4. Step 4: Simplify right side
    308,957.70x = 115,313,811,711.62
  5. Step 5: Solve for x
    x = 115,313,811,711.62/308,957.70
  6. Step 6: Final answer
    x = 373,234.95

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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.