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Finding the Fourth Proportional to 831,609.60, 1,247,997.60 and 532,816.80

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Solution

The fourth proportional to 831,609.60, 1,247,997.60 and 532,816.80 is: 799,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,609.60 : 1,247,997.60 = 532,816.80 : x
  2. Step 2: Convert to fraction form
    831,609.60/1,247,997.60 = 532,816.80/x
  3. Step 3: Cross multiply
    831,609.60x = 1,247,997.60 × 532,816.80
  4. Step 4: Simplify right side
    831,609.60x = 664,954,087,639.68
  5. Step 5: Solve for x
    x = 664,954,087,639.68/831,609.60
  6. Step 6: Final answer
    x = 799,598.86

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1.5x scale

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.