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Finding the Fourth Proportional to 324,907.76, 487,361.64 and 214,073.84

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Solution

The fourth proportional to 324,907.76, 487,361.64 and 214,073.84 is: 321,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,907.76 : 487,361.64 = 214,073.84 : x
  2. Step 2: Convert to fraction form
    324,907.76/487,361.64 = 214,073.84/x
  3. Step 3: Cross multiply
    324,907.76x = 487,361.64 × 214,073.84
  4. Step 4: Simplify right side
    324,907.76x = 104,331,377,743.50
  5. Step 5: Solve for x
    x = 104,331,377,743.50/324,907.76
  6. Step 6: Final answer
    x = 321,110.76

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1.5x scale

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.