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Finding the Fourth Proportional to 807,775.68, 1,211,881.68 and 246,794.88

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Solution

The fourth proportional to 807,775.68, 1,211,881.68 and 246,794.88 is: 370,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,775.68 : 1,211,881.68 = 246,794.88 : x
  2. Step 2: Convert to fraction form
    807,775.68/1,211,881.68 = 246,794.88/x
  3. Step 3: Cross multiply
    807,775.68x = 1,211,881.68 × 246,794.88
  4. Step 4: Simplify right side
    807,775.68x = 299,086,193,789.80
  5. Step 5: Solve for x
    x = 299,086,193,789.80/807,775.68
  6. Step 6: Final answer
    x = 370,258.97

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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.