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Finding the Fourth Proportional to 395,512.56, 545,774.44 and 232,151.40

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Solution

The fourth proportional to 395,512.56, 545,774.44 and 232,151.40 is: 320,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,512.56 : 545,774.44 = 232,151.40 : x
  2. Step 2: Convert to fraction form
    395,512.56/545,774.44 = 232,151.40/x
  3. Step 3: Cross multiply
    395,512.56x = 545,774.44 × 232,151.40
  4. Step 4: Simplify right side
    395,512.56x = 126,702,300,330.22
  5. Step 5: Solve for x
    x = 126,702,300,330.22/395,512.56
  6. Step 6: Final answer
    x = 320,349.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.