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Finding the Fourth Proportional to 373,644.11, 515,640.23 and 212,522.33

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Solution

The fourth proportional to 373,644.11, 515,640.23 and 212,522.33 is: 293,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,644.11 : 515,640.23 = 212,522.33 : x
  2. Step 2: Convert to fraction form
    373,644.11/515,640.23 = 212,522.33/x
  3. Step 3: Cross multiply
    373,644.11x = 515,640.23 × 212,522.33
  4. Step 4: Simplify right side
    373,644.11x = 109,585,059,480.52
  5. Step 5: Solve for x
    x = 109,585,059,480.52/373,644.11
  6. Step 6: Final answer
    x = 293,287.27

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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.