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Finding the Fourth Proportional to 454,968.90, 627,859.26 and 251,019.81

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Solution

The fourth proportional to 454,968.90, 627,859.26 and 251,019.81 is: 346,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,968.90 : 627,859.26 = 251,019.81 : x
  2. Step 2: Convert to fraction form
    454,968.90/627,859.26 = 251,019.81/x
  3. Step 3: Cross multiply
    454,968.90x = 627,859.26 × 251,019.81
  4. Step 4: Simplify right side
    454,968.90x = 157,605,112,151.94
  5. Step 5: Solve for x
    x = 157,605,112,151.94/454,968.90
  6. Step 6: Final answer
    x = 346,408.54

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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.