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Finding the Fourth Proportional to 382,049.60, 572,418.30 and 248,861.30

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Solution

The fourth proportional to 382,049.60, 572,418.30 and 248,861.30 is: 372,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,049.60 : 572,418.30 = 248,861.30 : x
  2. Step 2: Convert to fraction form
    382,049.60/572,418.30 = 248,861.30/x
  3. Step 3: Cross multiply
    382,049.60x = 572,418.30 × 248,861.30
  4. Step 4: Simplify right side
    382,049.60x = 142,452,762,281.79
  5. Step 5: Solve for x
    x = 142,452,762,281.79/382,049.60
  6. Step 6: Final answer
    x = 372,864.58

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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.