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Finding the Fourth Proportional to 353,861.42, 528,226.54 and 327,520.01

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Solution

The fourth proportional to 353,861.42, 528,226.54 and 327,520.01 is: 488,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,861.42 : 528,226.54 = 327,520.01 : x
  2. Step 2: Convert to fraction form
    353,861.42/528,226.54 = 327,520.01/x
  3. Step 3: Cross multiply
    353,861.42x = 528,226.54 × 327,520.01
  4. Step 4: Simplify right side
    353,861.42x = 173,004,762,164.83
  5. Step 5: Solve for x
    x = 173,004,762,164.83/353,861.42
  6. Step 6: Final answer
    x = 488,905.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.