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Finding the Fourth Proportional to 526,035.78, 789,403.19 and 193,611.78

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Solution

The fourth proportional to 526,035.78, 789,403.19 and 193,611.78 is: 290,546.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,035.78 : 789,403.19 = 193,611.78 : x
  2. Step 2: Convert to fraction form
    526,035.78/789,403.19 = 193,611.78/x
  3. Step 3: Cross multiply
    526,035.78x = 789,403.19 × 193,611.78
  4. Step 4: Simplify right side
    526,035.78x = 152,837,755,785.52
  5. Step 5: Solve for x
    x = 152,837,755,785.52/526,035.78
  6. Step 6: Final answer
    x = 290,546.31

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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.