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Finding the Fourth Proportional to 489,057.92, 674,866.14 and 271,246.04

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Solution

The fourth proportional to 489,057.92, 674,866.14 and 271,246.04 is: 374,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,057.92 : 674,866.14 = 271,246.04 : x
  2. Step 2: Convert to fraction form
    489,057.92/674,866.14 = 271,246.04/x
  3. Step 3: Cross multiply
    489,057.92x = 674,866.14 × 271,246.04
  4. Step 4: Simplify right side
    489,057.92x = 183,054,768,005.09
  5. Step 5: Solve for x
    x = 183,054,768,005.09/489,057.92
  6. Step 6: Final answer
    x = 374,300.79

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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.