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Finding the Fourth Proportional to 486,634.64, 671,549.16 and 271,778.48

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Solution

The fourth proportional to 486,634.64, 671,549.16 and 271,778.48 is: 375,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,634.64 : 671,549.16 = 271,778.48 : x
  2. Step 2: Convert to fraction form
    486,634.64/671,549.16 = 271,778.48/x
  3. Step 3: Cross multiply
    486,634.64x = 671,549.16 × 271,778.48
  4. Step 4: Simplify right side
    486,634.64x = 182,512,609,950.08
  5. Step 5: Solve for x
    x = 182,512,609,950.08/486,634.64
  6. Step 6: Final answer
    x = 375,050.59

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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.