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Finding the Fourth Proportional to 984,489.60, 1,474,401.60 and 667,228.80

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Solution

The fourth proportional to 984,489.60, 1,474,401.60 and 667,228.80 is: 999,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,489.60 : 1,474,401.60 = 667,228.80 : x
  2. Step 2: Convert to fraction form
    984,489.60/1,474,401.60 = 667,228.80/x
  3. Step 3: Cross multiply
    984,489.60x = 1,474,401.60 × 667,228.80
  4. Step 4: Simplify right side
    984,489.60x = 983,763,210,286.08
  5. Step 5: Solve for x
    x = 983,763,210,286.08/984,489.60
  6. Step 6: Final answer
    x = 999,262.17

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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.