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Finding the Fourth Proportional to 525,164.48, 788,003.76 and 325,431.44

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Solution

The fourth proportional to 525,164.48, 788,003.76 and 325,431.44 is: 488,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,164.48 : 788,003.76 = 325,431.44 : x
  2. Step 2: Convert to fraction form
    525,164.48/788,003.76 = 325,431.44/x
  3. Step 3: Cross multiply
    525,164.48x = 788,003.76 × 325,431.44
  4. Step 4: Simplify right side
    525,164.48x = 256,441,198,342.21
  5. Step 5: Solve for x
    x = 256,441,198,342.21/525,164.48
  6. Step 6: Final answer
    x = 488,306.44

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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.