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Finding the Fourth Proportional to 298,687.01, 412,186.43 and 162,720.62

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Solution

The fourth proportional to 298,687.01, 412,186.43 and 162,720.62 is: 224,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,687.01 : 412,186.43 = 162,720.62 : x
  2. Step 2: Convert to fraction form
    298,687.01/412,186.43 = 162,720.62/x
  3. Step 3: Cross multiply
    298,687.01x = 412,186.43 × 162,720.62
  4. Step 4: Simplify right side
    298,687.01x = 67,071,232,882.45
  5. Step 5: Solve for x
    x = 67,071,232,882.45/298,687.01
  6. Step 6: Final answer
    x = 224,553.57

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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.