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Finding the Fourth Proportional to 386,606.52, 579,433.86 and 184,309.20

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Solution

The fourth proportional to 386,606.52, 579,433.86 and 184,309.20 is: 276,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,606.52 : 579,433.86 = 184,309.20 : x
  2. Step 2: Convert to fraction form
    386,606.52/579,433.86 = 184,309.20/x
  3. Step 3: Cross multiply
    386,606.52x = 579,433.86 × 184,309.20
  4. Step 4: Simplify right side
    386,606.52x = 106,794,991,189.51
  5. Step 5: Solve for x
    x = 106,794,991,189.51/386,606.52
  6. Step 6: Final answer
    x = 276,236.91

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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.