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Finding the Fourth Proportional to 492,683.60, 738,150.60 and 461,190.80

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Solution

The fourth proportional to 492,683.60, 738,150.60 and 461,190.80 is: 690,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,683.60 : 738,150.60 = 461,190.80 : x
  2. Step 2: Convert to fraction form
    492,683.60/738,150.60 = 461,190.80/x
  3. Step 3: Cross multiply
    492,683.60x = 738,150.60 × 461,190.80
  4. Step 4: Simplify right side
    492,683.60x = 340,428,265,734.48
  5. Step 5: Solve for x
    x = 340,428,265,734.48/492,683.60
  6. Step 6: Final answer
    x = 690,967.32

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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.