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Finding the Fourth Proportional to 451,438.53, 677,379.69 and 181,555.89

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Solution

The fourth proportional to 451,438.53, 677,379.69 and 181,555.89 is: 272,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,438.53 : 677,379.69 = 181,555.89 : x
  2. Step 2: Convert to fraction form
    451,438.53/677,379.69 = 181,555.89/x
  3. Step 3: Cross multiply
    451,438.53x = 677,379.69 × 181,555.89
  4. Step 4: Simplify right side
    451,438.53x = 122,982,272,485.87
  5. Step 5: Solve for x
    x = 122,982,272,485.87/451,438.53
  6. Step 6: Final answer
    x = 272,423.07

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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.