Home / 786,458.97-1,084,971.83-499,825.26

Finding the Fourth Proportional to 786,458.97, 1,084,971.83 and 499,825.26

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Solution

The fourth proportional to 786,458.97, 1,084,971.83 and 499,825.26 is: 689,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,458.97 : 1,084,971.83 = 499,825.26 : x
  2. Step 2: Convert to fraction form
    786,458.97/1,084,971.83 = 499,825.26/x
  3. Step 3: Cross multiply
    786,458.97x = 1,084,971.83 × 499,825.26
  4. Step 4: Simplify right side
    786,458.97x = 542,296,324,523.30
  5. Step 5: Solve for x
    x = 542,296,324,523.30/786,458.97
  6. Step 6: Final answer
    x = 689,541.79

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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.