Home / 857,826.72-1,286,749.31-258,793.07

Finding the Fourth Proportional to 857,826.72, 1,286,749.31 and 258,793.07

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Solution

The fourth proportional to 857,826.72, 1,286,749.31 and 258,793.07 is: 388,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,826.72 : 1,286,749.31 = 258,793.07 : x
  2. Step 2: Convert to fraction form
    857,826.72/1,286,749.31 = 258,793.07/x
  3. Step 3: Cross multiply
    857,826.72x = 1,286,749.31 × 258,793.07
  4. Step 4: Simplify right side
    857,826.72x = 333,001,796,527.57
  5. Step 5: Solve for x
    x = 333,001,796,527.57/857,826.72
  6. Step 6: Final answer
    x = 388,192.38

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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.