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Finding the Fourth Proportional to 352,684, 486,703.80 and 191,539.09

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Solution

The fourth proportional to 352,684, 486,703.80 and 191,539.09 is: 264,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,684 : 486,703.80 = 191,539.09 : x
  2. Step 2: Convert to fraction form
    352,684/486,703.80 = 191,539.09/x
  3. Step 3: Cross multiply
    352,684x = 486,703.80 × 191,539.09
  4. Step 4: Simplify right side
    352,684x = 93,222,802,951.54
  5. Step 5: Solve for x
    x = 93,222,802,951.54/352,684
  6. Step 6: Final answer
    x = 264,323.88

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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.