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Finding the Fourth Proportional to 485,950.75, 670,610.13 and 271,090.64

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Solution

The fourth proportional to 485,950.75, 670,610.13 and 271,090.64 is: 374,104.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,950.75 : 670,610.13 = 271,090.64 : x
  2. Step 2: Convert to fraction form
    485,950.75/670,610.13 = 271,090.64/x
  3. Step 3: Cross multiply
    485,950.75x = 670,610.13 × 271,090.64
  4. Step 4: Simplify right side
    485,950.75x = 181,796,129,332.18
  5. Step 5: Solve for x
    x = 181,796,129,332.18/485,950.75
  6. Step 6: Final answer
    x = 374,104.02

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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.