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Finding the Fourth Proportional to 408,656.49, 612,978.57 and 183,858.17

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Solution

The fourth proportional to 408,656.49, 612,978.57 and 183,858.17 is: 275,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,656.49 : 612,978.57 = 183,858.17 : x
  2. Step 2: Convert to fraction form
    408,656.49/612,978.57 = 183,858.17/x
  3. Step 3: Cross multiply
    408,656.49x = 612,978.57 × 183,858.17
  4. Step 4: Simplify right side
    408,656.49x = 112,701,120,121.73
  5. Step 5: Solve for x
    x = 112,701,120,121.73/408,656.49
  6. Step 6: Final answer
    x = 275,784.49

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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.