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Finding the Fourth Proportional to 298,454.92, 447,400.96 and 148,553.48

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Solution

The fourth proportional to 298,454.92, 447,400.96 and 148,553.48 is: 222,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,454.92 : 447,400.96 = 148,553.48 : x
  2. Step 2: Convert to fraction form
    298,454.92/447,400.96 = 148,553.48/x
  3. Step 3: Cross multiply
    298,454.92x = 447,400.96 × 148,553.48
  4. Step 4: Simplify right side
    298,454.92x = 66,462,969,563.34
  5. Step 5: Solve for x
    x = 66,462,969,563.34/298,454.92
  6. Step 6: Final answer
    x = 222,690.15

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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.