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Finding the Fourth Proportional to 399,852.25, 551,707.20 and 230,086.37

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Solution

The fourth proportional to 399,852.25, 551,707.20 and 230,086.37 is: 317,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,852.25 : 551,707.20 = 230,086.37 : x
  2. Step 2: Convert to fraction form
    399,852.25/551,707.20 = 230,086.37/x
  3. Step 3: Cross multiply
    399,852.25x = 551,707.20 × 230,086.37
  4. Step 4: Simplify right side
    399,852.25x = 126,940,308,330.13
  5. Step 5: Solve for x
    x = 126,940,308,330.13/399,852.25
  6. Step 6: Final answer
    x = 317,468.04

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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.