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Finding the Fourth Proportional to 357,147.38, 492,861.83 and 196,005.03

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Solution

The fourth proportional to 357,147.38, 492,861.83 and 196,005.03 is: 270,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,147.38 : 492,861.83 = 196,005.03 : x
  2. Step 2: Convert to fraction form
    357,147.38/492,861.83 = 196,005.03/x
  3. Step 3: Cross multiply
    357,147.38x = 492,861.83 × 196,005.03
  4. Step 4: Simplify right side
    357,147.38x = 96,603,397,775.00
  5. Step 5: Solve for x
    x = 96,603,397,775.00/357,147.38
  6. Step 6: Final answer
    x = 270,486.09

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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.