Home / 657,256.30-985,884.45-257,910.10

Finding the Fourth Proportional to 657,256.30, 985,884.45 and 257,910.10

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Solution

The fourth proportional to 657,256.30, 985,884.45 and 257,910.10 is: 386,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,256.30 : 985,884.45 = 257,910.10 : x
  2. Step 2: Convert to fraction form
    657,256.30/985,884.45 = 257,910.10/x
  3. Step 3: Cross multiply
    657,256.30x = 985,884.45 × 257,910.10
  4. Step 4: Simplify right side
    657,256.30x = 254,269,557,087.95
  5. Step 5: Solve for x
    x = 254,269,557,087.95/657,256.30
  6. Step 6: Final answer
    x = 386,865.15

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Similar ratio
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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.