Home / 657,566.73-985,556.97-320,101.56

Finding the Fourth Proportional to 657,566.73, 985,556.97 and 320,101.56

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Solution

The fourth proportional to 657,566.73, 985,556.97 and 320,101.56 is: 479,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,566.73 : 985,556.97 = 320,101.56 : x
  2. Step 2: Convert to fraction form
    657,566.73/985,556.97 = 320,101.56/x
  3. Step 3: Cross multiply
    657,566.73x = 985,556.97 × 320,101.56
  4. Step 4: Simplify right side
    657,566.73x = 315,478,323,565.87
  5. Step 5: Solve for x
    x = 315,478,323,565.87/657,566.73
  6. Step 6: Final answer
    x = 479,766.25

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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.