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Finding the Fourth Proportional to 339,402.36, 506,622.39 and 314,732.28

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Solution

The fourth proportional to 339,402.36, 506,622.39 and 314,732.28 is: 469,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,402.36 : 506,622.39 = 314,732.28 : x
  2. Step 2: Convert to fraction form
    339,402.36/506,622.39 = 314,732.28/x
  3. Step 3: Cross multiply
    339,402.36x = 506,622.39 × 314,732.28
  4. Step 4: Simplify right side
    339,402.36x = 159,450,419,903.75
  5. Step 5: Solve for x
    x = 159,450,419,903.75/339,402.36
  6. Step 6: Final answer
    x = 469,797.62

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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.