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Finding the Fourth Proportional to 383,599.96, 529,264.09 and 218,025.63

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Solution

The fourth proportional to 383,599.96, 529,264.09 and 218,025.63 is: 300,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,599.96 : 529,264.09 = 218,025.63 : x
  2. Step 2: Convert to fraction form
    383,599.96/529,264.09 = 218,025.63/x
  3. Step 3: Cross multiply
    383,599.96x = 529,264.09 × 218,025.63
  4. Step 4: Simplify right side
    383,599.96x = 115,393,136,113.56
  5. Step 5: Solve for x
    x = 115,393,136,113.56/383,599.96
  6. Step 6: Final answer
    x = 300,816.34

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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.