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Finding the Fourth Proportional to 468,619.85, 646,694.23 and 253,759.90

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Solution

The fourth proportional to 468,619.85, 646,694.23 and 253,759.90 is: 350,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,619.85 : 646,694.23 = 253,759.90 : x
  2. Step 2: Convert to fraction form
    468,619.85/646,694.23 = 253,759.90/x
  3. Step 3: Cross multiply
    468,619.85x = 646,694.23 × 253,759.90
  4. Step 4: Simplify right side
    468,619.85x = 164,105,063,135.38
  5. Step 5: Solve for x
    x = 164,105,063,135.38/468,619.85
  6. Step 6: Final answer
    x = 350,188.03

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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.