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Finding the Fourth Proportional to 448,382.56, 618,772.08 and 247,185.76

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Solution

The fourth proportional to 448,382.56, 618,772.08 and 247,185.76 is: 341,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,382.56 : 618,772.08 = 247,185.76 : x
  2. Step 2: Convert to fraction form
    448,382.56/618,772.08 = 247,185.76/x
  3. Step 3: Cross multiply
    448,382.56x = 618,772.08 × 247,185.76
  4. Step 4: Simplify right side
    448,382.56x = 152,951,646,861.58
  5. Step 5: Solve for x
    x = 152,951,646,861.58/448,382.56
  6. Step 6: Final answer
    x = 341,118.64

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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.