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Finding the Fourth Proportional to 298,450.64, 411,736.20 and 197,673.68

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Solution

The fourth proportional to 298,450.64, 411,736.20 and 197,673.68 is: 272,706.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,450.64 : 411,736.20 = 197,673.68 : x
  2. Step 2: Convert to fraction form
    298,450.64/411,736.20 = 197,673.68/x
  3. Step 3: Cross multiply
    298,450.64x = 411,736.20 × 197,673.68
  4. Step 4: Simplify right side
    298,450.64x = 81,389,409,843.22
  5. Step 5: Solve for x
    x = 81,389,409,843.22/298,450.64
  6. Step 6: Final answer
    x = 272,706.43

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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.