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Finding the Fourth Proportional to 339,372.60, 505,368.36 and 335,645.16

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Solution

The fourth proportional to 339,372.60, 505,368.36 and 335,645.16 is: 499,817.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,372.60 : 505,368.36 = 335,645.16 : x
  2. Step 2: Convert to fraction form
    339,372.60/505,368.36 = 335,645.16/x
  3. Step 3: Cross multiply
    339,372.60x = 505,368.36 × 335,645.16
  4. Step 4: Simplify right side
    339,372.60x = 169,624,444,051.14
  5. Step 5: Solve for x
    x = 169,624,444,051.14/339,372.60
  6. Step 6: Final answer
    x = 499,817.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.