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Finding the Fourth Proportional to 248,446.80, 372,670.20 and 231,339.60

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Solution

The fourth proportional to 248,446.80, 372,670.20 and 231,339.60 is: 347,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,446.80 : 372,670.20 = 231,339.60 : x
  2. Step 2: Convert to fraction form
    248,446.80/372,670.20 = 231,339.60/x
  3. Step 3: Cross multiply
    248,446.80x = 372,670.20 × 231,339.60
  4. Step 4: Simplify right side
    248,446.80x = 86,213,374,999.92
  5. Step 5: Solve for x
    x = 86,213,374,999.92/248,446.80
  6. Step 6: Final answer
    x = 347,009.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.