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Finding the Fourth Proportional to 526,330.88, 789,194 and 206,107.76

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Solution

The fourth proportional to 526,330.88, 789,194 and 206,107.76 is: 309,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,330.88 : 789,194 = 206,107.76 : x
  2. Step 2: Convert to fraction form
    526,330.88/789,194 = 206,107.76/x
  3. Step 3: Cross multiply
    526,330.88x = 789,194 × 206,107.76
  4. Step 4: Simplify right side
    526,330.88x = 162,659,007,545.44
  5. Step 5: Solve for x
    x = 162,659,007,545.44/526,330.88
  6. Step 6: Final answer
    x = 309,043.25

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1.5x scale

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.