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Finding the Fourth Proportional to 951,978.36, 1,313,504.80 and 538,524.64

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Solution

The fourth proportional to 951,978.36, 1,313,504.80 and 538,524.64 is: 743,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,978.36 : 1,313,504.80 = 538,524.64 : x
  2. Step 2: Convert to fraction form
    951,978.36/1,313,504.80 = 538,524.64/x
  3. Step 3: Cross multiply
    951,978.36x = 1,313,504.80 × 538,524.64
  4. Step 4: Simplify right side
    951,978.36x = 707,354,699,558.27
  5. Step 5: Solve for x
    x = 707,354,699,558.27/951,978.36
  6. Step 6: Final answer
    x = 743,036.53

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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.