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Finding the Fourth Proportional to 325,862.40, 449,605.68 and 196,698.79

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Solution

The fourth proportional to 325,862.40, 449,605.68 and 196,698.79 is: 271,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,862.40 : 449,605.68 = 196,698.79 : x
  2. Step 2: Convert to fraction form
    325,862.40/449,605.68 = 196,698.79/x
  3. Step 3: Cross multiply
    325,862.40x = 449,605.68 × 196,698.79
  4. Step 4: Simplify right side
    325,862.40x = 88,436,890,528.48
  5. Step 5: Solve for x
    x = 88,436,890,528.48/325,862.40
  6. Step 6: Final answer
    x = 271,393.36

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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.