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Finding the Fourth Proportional to 454,968.40, 682,452.60 and 403,792.60

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Solution

The fourth proportional to 454,968.40, 682,452.60 and 403,792.60 is: 605,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,968.40 : 682,452.60 = 403,792.60 : x
  2. Step 2: Convert to fraction form
    454,968.40/682,452.60 = 403,792.60/x
  3. Step 3: Cross multiply
    454,968.40x = 682,452.60 × 403,792.60
  4. Step 4: Simplify right side
    454,968.40x = 275,569,309,730.76
  5. Step 5: Solve for x
    x = 275,569,309,730.76/454,968.40
  6. Step 6: Final answer
    x = 605,688.90

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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.