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Finding the Fourth Proportional to 522,181.50, 720,611.19 and 295,842.30

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Solution

The fourth proportional to 522,181.50, 720,611.19 and 295,842.30 is: 408,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,181.50 : 720,611.19 = 295,842.30 : x
  2. Step 2: Convert to fraction form
    522,181.50/720,611.19 = 295,842.30/x
  3. Step 3: Cross multiply
    522,181.50x = 720,611.19 × 295,842.30
  4. Step 4: Simplify right side
    522,181.50x = 213,187,271,855.34
  5. Step 5: Solve for x
    x = 213,187,271,855.34/522,181.50
  6. Step 6: Final answer
    x = 408,262.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.