Home / 857,817.02-1,286,734.77-258,783.37

Finding the Fourth Proportional to 857,817.02, 1,286,734.77 and 258,783.37

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Solution

The fourth proportional to 857,817.02, 1,286,734.77 and 258,783.37 is: 388,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,817.02 : 1,286,734.77 = 258,783.37 : x
  2. Step 2: Convert to fraction form
    857,817.02/1,286,734.77 = 258,783.37/x
  3. Step 3: Cross multiply
    857,817.02x = 1,286,734.77 × 258,783.37
  4. Step 4: Simplify right side
    857,817.02x = 332,985,560,076.78
  5. Step 5: Solve for x
    x = 332,985,560,076.78/857,817.02
  6. Step 6: Final answer
    x = 388,177.84

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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.