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Finding the Fourth Proportional to 603,011.20, 903,204.60 and 365,940.40

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Solution

The fourth proportional to 603,011.20, 903,204.60 and 365,940.40 is: 548,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,011.20 : 903,204.60 = 365,940.40 : x
  2. Step 2: Convert to fraction form
    603,011.20/903,204.60 = 365,940.40/x
  3. Step 3: Cross multiply
    603,011.20x = 903,204.60 × 365,940.40
  4. Step 4: Simplify right side
    603,011.20x = 330,519,052,605.84
  5. Step 5: Solve for x
    x = 330,519,052,605.84/603,011.20
  6. Step 6: Final answer
    x = 548,114.28

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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.