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Finding the Fourth Proportional to 325,609.48, 449,094.00 and 285,253.16

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Solution

The fourth proportional to 325,609.48, 449,094.00 and 285,253.16 is: 393,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,609.48 : 449,094.00 = 285,253.16 : x
  2. Step 2: Convert to fraction form
    325,609.48/449,094.00 = 285,253.16/x
  3. Step 3: Cross multiply
    325,609.48x = 449,094.00 × 285,253.16
  4. Step 4: Simplify right side
    325,609.48x = 128,105,481,461.27
  5. Step 5: Solve for x
    x = 128,105,481,461.27/325,609.48
  6. Step 6: Final answer
    x = 393,432.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.