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Finding the Fourth Proportional to 447,497.89, 671,038.73 and 162,990.37

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Solution

The fourth proportional to 447,497.89, 671,038.73 and 162,990.37 is: 244,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,497.89 : 671,038.73 = 162,990.37 : x
  2. Step 2: Convert to fraction form
    447,497.89/671,038.73 = 162,990.37/x
  3. Step 3: Cross multiply
    447,497.89x = 671,038.73 × 162,990.37
  4. Step 4: Simplify right side
    447,497.89x = 109,372,851,522.09
  5. Step 5: Solve for x
    x = 109,372,851,522.09/447,497.89
  6. Step 6: Final answer
    x = 244,409.76

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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.