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Finding the Fourth Proportional to 526,744.80, 789,825.60 and 210,844.80

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Solution

The fourth proportional to 526,744.80, 789,825.60 and 210,844.80 is: 316,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,744.80 : 789,825.60 = 210,844.80 : x
  2. Step 2: Convert to fraction form
    526,744.80/789,825.60 = 210,844.80/x
  3. Step 3: Cross multiply
    526,744.80x = 789,825.60 × 210,844.80
  4. Step 4: Simplify right side
    526,744.80x = 166,530,620,666.88
  5. Step 5: Solve for x
    x = 166,530,620,666.88/526,744.80
  6. Step 6: Final answer
    x = 316,150.48

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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.