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Finding the Fourth Proportional to 486,679.51, 671,610.58 and 271,822.56

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Solution

The fourth proportional to 486,679.51, 671,610.58 and 271,822.56 is: 375,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,679.51 : 671,610.58 = 271,822.56 : x
  2. Step 2: Convert to fraction form
    486,679.51/671,610.58 = 271,822.56/x
  3. Step 3: Cross multiply
    486,679.51x = 671,610.58 × 271,822.56
  4. Step 4: Simplify right side
    486,679.51x = 182,558,907,178.69
  5. Step 5: Solve for x
    x = 182,558,907,178.69/486,679.51
  6. Step 6: Final answer
    x = 375,111.14

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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.