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Finding the Fourth Proportional to 299,433.40, 449,322.90 and 112,463.80

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Solution

The fourth proportional to 299,433.40, 449,322.90 and 112,463.80 is: 168,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,433.40 : 449,322.90 = 112,463.80 : x
  2. Step 2: Convert to fraction form
    299,433.40/449,322.90 = 112,463.80/x
  3. Step 3: Cross multiply
    299,433.40x = 449,322.90 × 112,463.80
  4. Step 4: Simplify right side
    299,433.40x = 50,532,560,761.02
  5. Step 5: Solve for x
    x = 50,532,560,761.02/299,433.40
  6. Step 6: Final answer
    x = 168,760.60

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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.