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Finding the Fourth Proportional to 324,859.37, 486,338.82 and 189,509.58

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Solution

The fourth proportional to 324,859.37, 486,338.82 and 189,509.58 is: 283,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,859.37 : 486,338.82 = 189,509.58 : x
  2. Step 2: Convert to fraction form
    324,859.37/486,338.82 = 189,509.58/x
  3. Step 3: Cross multiply
    324,859.37x = 486,338.82 × 189,509.58
  4. Step 4: Simplify right side
    324,859.37x = 92,165,865,515.90
  5. Step 5: Solve for x
    x = 92,165,865,515.90/324,859.37
  6. Step 6: Final answer
    x = 283,710.04

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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.