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Finding the Fourth Proportional to 526,486.86, 789,729.68 and 171,500.31

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Solution

The fourth proportional to 526,486.86, 789,729.68 and 171,500.31 is: 257,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,486.86 : 789,729.68 = 171,500.31 : x
  2. Step 2: Convert to fraction form
    526,486.86/789,729.68 = 171,500.31/x
  3. Step 3: Cross multiply
    526,486.86x = 789,729.68 × 171,500.31
  4. Step 4: Simplify right side
    526,486.86x = 135,438,885,364.95
  5. Step 5: Solve for x
    x = 135,438,885,364.95/526,486.86
  6. Step 6: Final answer
    x = 257,250.27

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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.