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Finding the Fourth Proportional to 422,586.65, 633,034.94 and 254,015.52

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Solution

The fourth proportional to 422,586.65, 633,034.94 and 254,015.52 is: 380,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,586.65 : 633,034.94 = 254,015.52 : x
  2. Step 2: Convert to fraction form
    422,586.65/633,034.94 = 254,015.52/x
  3. Step 3: Cross multiply
    422,586.65x = 633,034.94 × 254,015.52
  4. Step 4: Simplify right side
    422,586.65x = 160,800,698,192.19
  5. Step 5: Solve for x
    x = 160,800,698,192.19/422,586.65
  6. Step 6: Final answer
    x = 380,515.33

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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.