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Finding the Fourth Proportional to 440,693.37, 661,098.90 and 174,391.61

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Solution

The fourth proportional to 440,693.37, 661,098.90 and 174,391.61 is: 261,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,693.37 : 661,098.90 = 174,391.61 : x
  2. Step 2: Convert to fraction form
    440,693.37/661,098.90 = 174,391.61/x
  3. Step 3: Cross multiply
    440,693.37x = 661,098.90 × 174,391.61
  4. Step 4: Simplify right side
    440,693.37x = 115,290,101,540.23
  5. Step 5: Solve for x
    x = 115,290,101,540.23/440,693.37
  6. Step 6: Final answer
    x = 261,610.70

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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.