Home / 657,940.54-907,578.95-396,113.57

Finding the Fourth Proportional to 657,940.54, 907,578.95 and 396,113.57

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Solution

The fourth proportional to 657,940.54, 907,578.95 and 396,113.57 is: 546,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,940.54 : 907,578.95 = 396,113.57 : x
  2. Step 2: Convert to fraction form
    657,940.54/907,578.95 = 396,113.57/x
  3. Step 3: Cross multiply
    657,940.54x = 907,578.95 × 396,113.57
  4. Step 4: Simplify right side
    657,940.54x = 359,504,341,200.58
  5. Step 5: Solve for x
    x = 359,504,341,200.58/657,940.54
  6. Step 6: Final answer
    x = 546,408.56

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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.