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Finding the Fourth Proportional to 492,599.54, 679,825.88 and 274,876.67

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Solution

The fourth proportional to 492,599.54, 679,825.88 and 274,876.67 is: 379,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,599.54 : 679,825.88 = 274,876.67 : x
  2. Step 2: Convert to fraction form
    492,599.54/679,825.88 = 274,876.67/x
  3. Step 3: Cross multiply
    492,599.54x = 679,825.88 × 274,876.67
  4. Step 4: Simplify right side
    492,599.54x = 186,868,275,430.19
  5. Step 5: Solve for x
    x = 186,868,275,430.19/492,599.54
  6. Step 6: Final answer
    x = 379,351.30

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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.