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Finding the Fourth Proportional to 400,149.79, 599,558.22 and 281,572.00

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Solution

The fourth proportional to 400,149.79, 599,558.22 and 281,572.00 is: 421,889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,149.79 : 599,558.22 = 281,572.00 : x
  2. Step 2: Convert to fraction form
    400,149.79/599,558.22 = 281,572.00/x
  3. Step 3: Cross multiply
    400,149.79x = 599,558.22 × 281,572.00
  4. Step 4: Simplify right side
    400,149.79x = 168,818,805,622.94
  5. Step 5: Solve for x
    x = 168,818,805,622.94/400,149.79
  6. Step 6: Final answer
    x = 421,889.03

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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.