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Finding the Fourth Proportional to 489,760.98, 675,887.06 and 271,973.30

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Solution

The fourth proportional to 489,760.98, 675,887.06 and 271,973.30 is: 375,332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,760.98 : 675,887.06 = 271,973.30 : x
  2. Step 2: Convert to fraction form
    489,760.98/675,887.06 = 271,973.30/x
  3. Step 3: Cross multiply
    489,760.98x = 675,887.06 × 271,973.30
  4. Step 4: Simplify right side
    489,760.98x = 183,823,231,436.00
  5. Step 5: Solve for x
    x = 183,823,231,436.00/489,760.98
  6. Step 6: Final answer
    x = 375,332.54

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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.