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Finding the Fourth Proportional to 489,078.07, 733,619.54 and 222,652.20

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Solution

The fourth proportional to 489,078.07, 733,619.54 and 222,652.20 is: 333,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,078.07 : 733,619.54 = 222,652.20 : x
  2. Step 2: Convert to fraction form
    489,078.07/733,619.54 = 222,652.20/x
  3. Step 3: Cross multiply
    489,078.07x = 733,619.54 × 222,652.20
  4. Step 4: Simplify right side
    489,078.07x = 163,342,004,543.99
  5. Step 5: Solve for x
    x = 163,342,004,543.99/489,078.07
  6. Step 6: Final answer
    x = 333,979.41

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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.