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Finding the Fourth Proportional to 275,276.70, 412,915.05 and 246,408.30

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Solution

The fourth proportional to 275,276.70, 412,915.05 and 246,408.30 is: 369,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,276.70 : 412,915.05 = 246,408.30 : x
  2. Step 2: Convert to fraction form
    275,276.70/412,915.05 = 246,408.30/x
  3. Step 3: Cross multiply
    275,276.70x = 412,915.05 × 246,408.30
  4. Step 4: Simplify right side
    275,276.70x = 101,745,695,514.92
  5. Step 5: Solve for x
    x = 101,745,695,514.92/275,276.70
  6. Step 6: Final answer
    x = 369,612.45

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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.