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Finding the Fourth Proportional to 548,494.67, 756,961.34 and 306,799.73

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Solution

The fourth proportional to 548,494.67, 756,961.34 and 306,799.73 is: 423,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,494.67 : 756,961.34 = 306,799.73 : x
  2. Step 2: Convert to fraction form
    548,494.67/756,961.34 = 306,799.73/x
  3. Step 3: Cross multiply
    548,494.67x = 756,961.34 × 306,799.73
  4. Step 4: Simplify right side
    548,494.67x = 232,235,532,252.24
  5. Step 5: Solve for x
    x = 232,235,532,252.24/548,494.67
  6. Step 6: Final answer
    x = 423,405.27

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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.