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Finding the Fourth Proportional to 603,828.40, 906,325.80 and 367,632.40

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Solution

The fourth proportional to 603,828.40, 906,325.80 and 367,632.40 is: 551,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,828.40 : 906,325.80 = 367,632.40 : x
  2. Step 2: Convert to fraction form
    603,828.40/906,325.80 = 367,632.40/x
  3. Step 3: Cross multiply
    603,828.40x = 906,325.80 × 367,632.40
  4. Step 4: Simplify right side
    603,828.40x = 333,194,729,035.92
  5. Step 5: Solve for x
    x = 333,194,729,035.92/603,828.40
  6. Step 6: Final answer
    x = 551,803.67

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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.