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Finding the Fourth Proportional to 298,496.40, 447,744.60 and 263,504.40

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Solution

The fourth proportional to 298,496.40, 447,744.60 and 263,504.40 is: 395,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,496.40 : 447,744.60 = 263,504.40 : x
  2. Step 2: Convert to fraction form
    298,496.40/447,744.60 = 263,504.40/x
  3. Step 3: Cross multiply
    298,496.40x = 447,744.60 × 263,504.40
  4. Step 4: Simplify right side
    298,496.40x = 117,982,672,176.24
  5. Step 5: Solve for x
    x = 117,982,672,176.24/298,496.40
  6. Step 6: Final answer
    x = 395,256.60

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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.