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Finding the Fourth Proportional to 422,626.83, 633,739.56 and 245,188.23

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Solution

The fourth proportional to 422,626.83, 633,739.56 and 245,188.23 is: 367,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,626.83 : 633,739.56 = 245,188.23 : x
  2. Step 2: Convert to fraction form
    422,626.83/633,739.56 = 245,188.23/x
  3. Step 3: Cross multiply
    422,626.83x = 633,739.56 × 245,188.23
  4. Step 4: Simplify right side
    422,626.83x = 155,385,480,997.38
  5. Step 5: Solve for x
    x = 155,385,480,997.38/422,626.83
  6. Step 6: Final answer
    x = 367,665.92

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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.