Home / 656,951.40-985,456.26-257,556.60

Finding the Fourth Proportional to 656,951.40, 985,456.26 and 257,556.60

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Solution

The fourth proportional to 656,951.40, 985,456.26 and 257,556.60 is: 386,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,951.40 : 985,456.26 = 257,556.60 : x
  2. Step 2: Convert to fraction form
    656,951.40/985,456.26 = 257,556.60/x
  3. Step 3: Cross multiply
    656,951.40x = 985,456.26 × 257,556.60
  4. Step 4: Simplify right side
    656,951.40x = 253,810,763,774.32
  5. Step 5: Solve for x
    x = 253,810,763,774.32/656,951.40
  6. Step 6: Final answer
    x = 386,346.33

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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.