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Finding the Fourth Proportional to 329,612.10, 494,418.15 and 270,563.10

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Solution

The fourth proportional to 329,612.10, 494,418.15 and 270,563.10 is: 405,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,612.10 : 494,418.15 = 270,563.10 : x
  2. Step 2: Convert to fraction form
    329,612.10/494,418.15 = 270,563.10/x
  3. Step 3: Cross multiply
    329,612.10x = 494,418.15 × 270,563.10
  4. Step 4: Simplify right side
    329,612.10x = 133,771,307,360.27
  5. Step 5: Solve for x
    x = 133,771,307,360.27/329,612.10
  6. Step 6: Final answer
    x = 405,844.65

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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.