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Finding the Fourth Proportional to 353,998.30, 488,522.94 and 192,853.30

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Solution

The fourth proportional to 353,998.30, 488,522.94 and 192,853.30 is: 266,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,998.30 : 488,522.94 = 192,853.30 : x
  2. Step 2: Convert to fraction form
    353,998.30/488,522.94 = 192,853.30/x
  3. Step 3: Cross multiply
    353,998.30x = 488,522.94 × 192,853.30
  4. Step 4: Simplify right side
    353,998.30x = 94,213,261,104.70
  5. Step 5: Solve for x
    x = 94,213,261,104.70/353,998.30
  6. Step 6: Final answer
    x = 266,140.43

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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.