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Finding the Fourth Proportional to 518,974.44, 715,548.41 and 426,771.51

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Solution

The fourth proportional to 518,974.44, 715,548.41 and 426,771.51 is: 588,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,974.44 : 715,548.41 = 426,771.51 : x
  2. Step 2: Convert to fraction form
    518,974.44/715,548.41 = 426,771.51/x
  3. Step 3: Cross multiply
    518,974.44x = 715,548.41 × 426,771.51
  4. Step 4: Simplify right side
    518,974.44x = 305,375,673,279.94
  5. Step 5: Solve for x
    x = 305,375,673,279.94/518,974.44
  6. Step 6: Final answer
    x = 588,421.41

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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.