Home / 1,285,236.39-1,773,626.21-712,313.47

Finding the Fourth Proportional to 1,285,236.39, 1,773,626.21 and 712,313.47

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Solution

The fourth proportional to 1,285,236.39, 1,773,626.21 and 712,313.47 is: 982,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,236.39 : 1,773,626.21 = 712,313.47 : x
  2. Step 2: Convert to fraction form
    1,285,236.39/1,773,626.21 = 712,313.47/x
  3. Step 3: Cross multiply
    1,285,236.39x = 1,773,626.21 × 712,313.47
  4. Step 4: Simplify right side
    1,285,236.39x = 1,263,377,838,469.75
  5. Step 5: Solve for x
    x = 1,263,377,838,469.75/1,285,236.39
  6. Step 6: Final answer
    x = 982,992.58

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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.