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Finding the Fourth Proportional to 526,355.46, 789,525.86 and 126,992.88

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Solution

The fourth proportional to 526,355.46, 789,525.86 and 126,992.88 is: 190,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,355.46 : 789,525.86 = 126,992.88 : x
  2. Step 2: Convert to fraction form
    526,355.46/789,525.86 = 126,992.88/x
  3. Step 3: Cross multiply
    526,355.46x = 789,525.86 × 126,992.88
  4. Step 4: Simplify right side
    526,355.46x = 100,264,162,795.88
  5. Step 5: Solve for x
    x = 100,264,162,795.88/526,355.46
  6. Step 6: Final answer
    x = 190,487.55

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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.