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Finding the Fourth Proportional to 354,323.22, 488,968.90 and 193,179.44

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Solution

The fourth proportional to 354,323.22, 488,968.90 and 193,179.44 is: 266,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,323.22 : 488,968.90 = 193,179.44 : x
  2. Step 2: Convert to fraction form
    354,323.22/488,968.90 = 193,179.44/x
  3. Step 3: Cross multiply
    354,323.22x = 488,968.90 × 193,179.44
  4. Step 4: Simplify right side
    354,323.22x = 94,458,738,279.42
  5. Step 5: Solve for x
    x = 94,458,738,279.42/354,323.22
  6. Step 6: Final answer
    x = 266,589.18

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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.