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Finding the Fourth Proportional to 489,351.14, 675,303.16 and 271,592.69

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Solution

The fourth proportional to 489,351.14, 675,303.16 and 271,592.69 is: 374,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,351.14 : 675,303.16 = 271,592.69 : x
  2. Step 2: Convert to fraction form
    489,351.14/675,303.16 = 271,592.69/x
  3. Step 3: Cross multiply
    489,351.14x = 675,303.16 × 271,592.69
  4. Step 4: Simplify right side
    489,351.14x = 183,407,400,431.94
  5. Step 5: Solve for x
    x = 183,407,400,431.94/489,351.14
  6. Step 6: Final answer
    x = 374,797.13

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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.