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Finding the Fourth Proportional to 408,656.36, 612,978.38 and 183,858.05

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Solution

The fourth proportional to 408,656.36, 612,978.38 and 183,858.05 is: 275,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,656.36 : 612,978.38 = 183,858.05 : x
  2. Step 2: Convert to fraction form
    408,656.36/612,978.38 = 183,858.05/x
  3. Step 3: Cross multiply
    408,656.36x = 612,978.38 × 183,858.05
  4. Step 4: Simplify right side
    408,656.36x = 112,701,009,638.96
  5. Step 5: Solve for x
    x = 112,701,009,638.96/408,656.36
  6. Step 6: Final answer
    x = 275,784.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.