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Finding the Fourth Proportional to 353,999.14, 488,516.90 and 192,853.80

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Solution

The fourth proportional to 353,999.14, 488,516.90 and 192,853.80 is: 266,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,999.14 : 488,516.90 = 192,853.80 : x
  2. Step 2: Convert to fraction form
    353,999.14/488,516.90 = 192,853.80/x
  3. Step 3: Cross multiply
    353,999.14x = 488,516.90 × 192,853.80
  4. Step 4: Simplify right side
    353,999.14x = 94,212,339,564.95
  5. Step 5: Solve for x
    x = 94,212,339,564.95/353,999.14
  6. Step 6: Final answer
    x = 266,137.20

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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.