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Finding the Fourth Proportional to 486,682.51, 671,614.71 and 271,825.57

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Solution

The fourth proportional to 486,682.51, 671,614.71 and 271,825.57 is: 375,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,682.51 : 671,614.71 = 271,825.57 : x
  2. Step 2: Convert to fraction form
    486,682.51/671,614.71 = 271,825.57/x
  3. Step 3: Cross multiply
    486,682.51x = 671,614.71 × 271,825.57
  4. Step 4: Simplify right side
    486,682.51x = 182,562,051,366.14
  5. Step 5: Solve for x
    x = 182,562,051,366.14/486,682.51
  6. Step 6: Final answer
    x = 375,115.29

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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.