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Finding the Fourth Proportional to 482,716.10, 666,277.45 and 301,318.79

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Solution

The fourth proportional to 482,716.10, 666,277.45 and 301,318.79 is: 415,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,716.10 : 666,277.45 = 301,318.79 : x
  2. Step 2: Convert to fraction form
    482,716.10/666,277.45 = 301,318.79/x
  3. Step 3: Cross multiply
    482,716.10x = 666,277.45 × 301,318.79
  4. Step 4: Simplify right side
    482,716.10x = 200,761,910,953.60
  5. Step 5: Solve for x
    x = 200,761,910,953.60/482,716.10
  6. Step 6: Final answer
    x = 415,900.59

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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.