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Finding the Fourth Proportional to 449,222.44, 619,928.28 and 245,275.12

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Solution

The fourth proportional to 449,222.44, 619,928.28 and 245,275.12 is: 338,480.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,222.44 : 619,928.28 = 245,275.12 : x
  2. Step 2: Convert to fraction form
    449,222.44/619,928.28 = 245,275.12/x
  3. Step 3: Cross multiply
    449,222.44x = 619,928.28 × 245,275.12
  4. Step 4: Simplify right side
    449,222.44x = 152,052,983,268.39
  5. Step 5: Solve for x
    x = 152,052,983,268.39/449,222.44
  6. Step 6: Final answer
    x = 338,480.38

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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.