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Finding the Fourth Proportional to 486,842.16, 671,842.12 and 271,982.28

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Solution

The fourth proportional to 486,842.16, 671,842.12 and 271,982.28 is: 375,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,842.16 : 671,842.12 = 271,982.28 : x
  2. Step 2: Convert to fraction form
    486,842.16/671,842.12 = 271,982.28/x
  3. Step 3: Cross multiply
    486,842.16x = 671,842.12 × 271,982.28
  4. Step 4: Simplify right side
    486,842.16x = 182,729,151,597.63
  5. Step 5: Solve for x
    x = 182,729,151,597.63/486,842.16
  6. Step 6: Final answer
    x = 375,335.51

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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.