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Finding the Fourth Proportional to 482,462.64, 666,027 and 321,585.84

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Solution

The fourth proportional to 482,462.64, 666,027 and 321,585.84 is: 443,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,462.64 : 666,027 = 321,585.84 : x
  2. Step 2: Convert to fraction form
    482,462.64/666,027 = 321,585.84/x
  3. Step 3: Cross multiply
    482,462.64x = 666,027 × 321,585.84
  4. Step 4: Simplify right side
    482,462.64x = 214,184,852,257.68
  5. Step 5: Solve for x
    x = 214,184,852,257.68/482,462.64
  6. Step 6: Final answer
    x = 443,940.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.