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Finding the Fourth Proportional to 606,287.59, 909,181.16 and 206,960.56

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Solution

The fourth proportional to 606,287.59, 909,181.16 and 206,960.56 is: 310,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,287.59 : 909,181.16 = 206,960.56 : x
  2. Step 2: Convert to fraction form
    606,287.59/909,181.16 = 206,960.56/x
  3. Step 3: Cross multiply
    606,287.59x = 909,181.16 × 206,960.56
  4. Step 4: Simplify right side
    606,287.59x = 188,164,639,483.40
  5. Step 5: Solve for x
    x = 188,164,639,483.40/606,287.59
  6. Step 6: Final answer
    x = 310,355.42

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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.