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Finding the Fourth Proportional to 463,115.56, 639,022.43 and 272,165.86

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Solution

The fourth proportional to 463,115.56, 639,022.43 and 272,165.86 is: 375,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,115.56 : 639,022.43 = 272,165.86 : x
  2. Step 2: Convert to fraction form
    463,115.56/639,022.43 = 272,165.86/x
  3. Step 3: Cross multiply
    463,115.56x = 639,022.43 × 272,165.86
  4. Step 4: Simplify right side
    463,115.56x = 173,920,089,220.24
  5. Step 5: Solve for x
    x = 173,920,089,220.24/463,115.56
  6. Step 6: Final answer
    x = 375,543.61

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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.