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Finding the Fourth Proportional to 481,994.71, 664,385.38 and 379,856.34

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Solution

The fourth proportional to 481,994.71, 664,385.38 and 379,856.34 is: 523,597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,994.71 : 664,385.38 = 379,856.34 : x
  2. Step 2: Convert to fraction form
    481,994.71/664,385.38 = 379,856.34/x
  3. Step 3: Cross multiply
    481,994.71x = 664,385.38 × 379,856.34
  4. Step 4: Simplify right side
    481,994.71x = 252,370,997,846.67
  5. Step 5: Solve for x
    x = 252,370,997,846.67/481,994.71
  6. Step 6: Final answer
    x = 523,597.03

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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.