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Finding the Fourth Proportional to 489,522.46, 675,551.46 and 274,678.06

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Solution

The fourth proportional to 489,522.46, 675,551.46 and 274,678.06 is: 379,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,522.46 : 675,551.46 = 274,678.06 : x
  2. Step 2: Convert to fraction form
    489,522.46/675,551.46 = 274,678.06/x
  3. Step 3: Cross multiply
    489,522.46x = 675,551.46 × 274,678.06
  4. Step 4: Simplify right side
    489,522.46x = 185,559,164,462.97
  5. Step 5: Solve for x
    x = 185,559,164,462.97/489,522.46
  6. Step 6: Final answer
    x = 379,061.59

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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.