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Finding the Fourth Proportional to 735,806.56, 1,015,422.04 and 449,286.88

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Solution

The fourth proportional to 735,806.56, 1,015,422.04 and 449,286.88 is: 620,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,806.56 : 1,015,422.04 = 449,286.88 : x
  2. Step 2: Convert to fraction form
    735,806.56/1,015,422.04 = 449,286.88/x
  3. Step 3: Cross multiply
    735,806.56x = 1,015,422.04 × 449,286.88
  4. Step 4: Simplify right side
    735,806.56x = 456,215,800,234.84
  5. Step 5: Solve for x
    x = 456,215,800,234.84/735,806.56
  6. Step 6: Final answer
    x = 620,021.38

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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.