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Finding the Fourth Proportional to 485,848.02, 670,471.44 and 271,002

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Solution

The fourth proportional to 485,848.02, 670,471.44 and 271,002 is: 373,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,848.02 : 670,471.44 = 271,002 : x
  2. Step 2: Convert to fraction form
    485,848.02/670,471.44 = 271,002/x
  3. Step 3: Cross multiply
    485,848.02x = 670,471.44 × 271,002
  4. Step 4: Simplify right side
    485,848.02x = 181,699,101,182.88
  5. Step 5: Solve for x
    x = 181,699,101,182.88/485,848.02
  6. Step 6: Final answer
    x = 373,983.41

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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.