Home / 819,447.52-1,229,283.45-279,558.85

Finding the Fourth Proportional to 819,447.52, 1,229,283.45 and 279,558.85

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Solution

The fourth proportional to 819,447.52, 1,229,283.45 and 279,558.85 is: 419,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,447.52 : 1,229,283.45 = 279,558.85 : x
  2. Step 2: Convert to fraction form
    819,447.52/1,229,283.45 = 279,558.85/x
  3. Step 3: Cross multiply
    819,447.52x = 1,229,283.45 × 279,558.85
  4. Step 4: Simplify right side
    819,447.52x = 343,657,067,606.03
  5. Step 5: Solve for x
    x = 343,657,067,606.03/819,447.52
  6. Step 6: Final answer
    x = 419,376.54

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Double scale
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1.5x scale

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.