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Finding the Fourth Proportional to 448,216.40, 672,324.60 and 163,906.40

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Solution

The fourth proportional to 448,216.40, 672,324.60 and 163,906.40 is: 245,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,216.40 : 672,324.60 = 163,906.40 : x
  2. Step 2: Convert to fraction form
    448,216.40/672,324.60 = 163,906.40/x
  3. Step 3: Cross multiply
    448,216.40x = 672,324.60 × 163,906.40
  4. Step 4: Simplify right side
    448,216.40x = 110,198,304,817.44
  5. Step 5: Solve for x
    x = 110,198,304,817.44/448,216.40
  6. Step 6: Final answer
    x = 245,859.60

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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.