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Finding the Fourth Proportional to 298,518.23, 411,949.24 and 162,553.79

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Solution

The fourth proportional to 298,518.23, 411,949.24 and 162,553.79 is: 224,321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,518.23 : 411,949.24 = 162,553.79 : x
  2. Step 2: Convert to fraction form
    298,518.23/411,949.24 = 162,553.79/x
  3. Step 3: Cross multiply
    298,518.23x = 411,949.24 × 162,553.79
  4. Step 4: Simplify right side
    298,518.23x = 66,963,910,249.62
  5. Step 5: Solve for x
    x = 66,963,910,249.62/298,518.23
  6. Step 6: Final answer
    x = 224,321.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.