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Finding the Fourth Proportional to 492,334.44, 738,626.40 and 137,348.40

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Solution

The fourth proportional to 492,334.44, 738,626.40 and 137,348.40 is: 206,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,334.44 : 738,626.40 = 137,348.40 : x
  2. Step 2: Convert to fraction form
    492,334.44/738,626.40 = 137,348.40/x
  3. Step 3: Cross multiply
    492,334.44x = 738,626.40 × 137,348.40
  4. Step 4: Simplify right side
    492,334.44x = 101,449,154,237.76
  5. Step 5: Solve for x
    x = 101,449,154,237.76/492,334.44
  6. Step 6: Final answer
    x = 206,057.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.