Home / 633,974.97-874,975.17-392,335.37

Finding the Fourth Proportional to 633,974.97, 874,975.17 and 392,335.37

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Solution

The fourth proportional to 633,974.97, 874,975.17 and 392,335.37 is: 541,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,974.97 : 874,975.17 = 392,335.37 : x
  2. Step 2: Convert to fraction form
    633,974.97/874,975.17 = 392,335.37/x
  3. Step 3: Cross multiply
    633,974.97x = 874,975.17 × 392,335.37
  4. Step 4: Simplify right side
    633,974.97x = 343,283,707,062.76
  5. Step 5: Solve for x
    x = 343,283,707,062.76/633,974.97
  6. Step 6: Final answer
    x = 541,478.33

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1.5x scale

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.