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Finding the Fourth Proportional to 353,999.26, 488,513.29 and 192,856.26

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Solution

The fourth proportional to 353,999.26, 488,513.29 and 192,856.26 is: 266,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,999.26 : 488,513.29 = 192,856.26 : x
  2. Step 2: Convert to fraction form
    353,999.26/488,513.29 = 192,856.26/x
  3. Step 3: Cross multiply
    353,999.26x = 488,513.29 × 192,856.26
  4. Step 4: Simplify right side
    353,999.26x = 94,212,846,069.70
  5. Step 5: Solve for x
    x = 94,212,846,069.70/353,999.26
  6. Step 6: Final answer
    x = 266,138.54

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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.