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Finding the Fourth Proportional to 379,020.69, 568,122.80 and 201,348.81

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Solution

The fourth proportional to 379,020.69, 568,122.80 and 201,348.81 is: 301,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,020.69 : 568,122.80 = 201,348.81 : x
  2. Step 2: Convert to fraction form
    379,020.69/568,122.80 = 201,348.81/x
  3. Step 3: Cross multiply
    379,020.69x = 568,122.80 × 201,348.81
  4. Step 4: Simplify right side
    379,020.69x = 114,390,848,707.12
  5. Step 5: Solve for x
    x = 114,390,848,707.12/379,020.69
  6. Step 6: Final answer
    x = 301,806.34

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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.