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Finding the Fourth Proportional to 325,438.74, 488,231.72 and 175,675.81

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Solution

The fourth proportional to 325,438.74, 488,231.72 and 175,675.81 is: 263,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,438.74 : 488,231.72 = 175,675.81 : x
  2. Step 2: Convert to fraction form
    325,438.74/488,231.72 = 175,675.81/x
  3. Step 3: Cross multiply
    325,438.74x = 488,231.72 × 175,675.81
  4. Step 4: Simplify right side
    325,438.74x = 85,770,502,878.69
  5. Step 5: Solve for x
    x = 85,770,502,878.69/325,438.74
  6. Step 6: Final answer
    x = 263,553.45

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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.