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Finding the Fourth Proportional to 339,449.94, 509,109.30 and 322,590.60

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Solution

The fourth proportional to 339,449.94, 509,109.30 and 322,590.60 is: 483,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,449.94 : 509,109.30 = 322,590.60 : x
  2. Step 2: Convert to fraction form
    339,449.94/509,109.30 = 322,590.60/x
  3. Step 3: Cross multiply
    339,449.94x = 509,109.30 × 322,590.60
  4. Step 4: Simplify right side
    339,449.94x = 164,233,874,552.58
  5. Step 5: Solve for x
    x = 164,233,874,552.58/339,449.94
  6. Step 6: Final answer
    x = 483,823.55

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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.