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Finding the Fourth Proportional to 386,532, 533,472.48 and 235,716.48

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Solution

The fourth proportional to 386,532, 533,472.48 and 235,716.48 is: 325,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,532 : 533,472.48 = 235,716.48 : x
  2. Step 2: Convert to fraction form
    386,532/533,472.48 = 235,716.48/x
  3. Step 3: Cross multiply
    386,532x = 533,472.48 × 235,716.48
  4. Step 4: Simplify right side
    386,532x = 125,748,255,162.47
  5. Step 5: Solve for x
    x = 125,748,255,162.47/386,532
  6. Step 6: Final answer
    x = 325,324.31

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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.