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Finding the Fourth Proportional to 454,412.43, 627,015.33 and 263,388.51

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Solution

The fourth proportional to 454,412.43, 627,015.33 and 263,388.51 is: 363,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,412.43 : 627,015.33 = 263,388.51 : x
  2. Step 2: Convert to fraction form
    454,412.43/627,015.33 = 263,388.51/x
  3. Step 3: Cross multiply
    454,412.43x = 627,015.33 × 263,388.51
  4. Step 4: Simplify right side
    454,412.43x = 165,148,633,515.86
  5. Step 5: Solve for x
    x = 165,148,633,515.86/454,412.43
  6. Step 6: Final answer
    x = 363,433.35

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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.