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Finding the Fourth Proportional to 603,818.40, 906,310.80 and 367,622.40

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Solution

The fourth proportional to 603,818.40, 906,310.80 and 367,622.40 is: 551,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,818.40 : 906,310.80 = 367,622.40 : x
  2. Step 2: Convert to fraction form
    603,818.40/906,310.80 = 367,622.40/x
  3. Step 3: Cross multiply
    603,818.40x = 906,310.80 × 367,622.40
  4. Step 4: Simplify right side
    603,818.40x = 333,180,151,441.92
  5. Step 5: Solve for x
    x = 333,180,151,441.92/603,818.40
  6. Step 6: Final answer
    x = 551,788.67

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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.