Home / 857,923.28-1,286,852.56-258,868.46

Finding the Fourth Proportional to 857,923.28, 1,286,852.56 and 258,868.46

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Solution

The fourth proportional to 857,923.28, 1,286,852.56 and 258,868.46 is: 388,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,923.28 : 1,286,852.56 = 258,868.46 : x
  2. Step 2: Convert to fraction form
    857,923.28/1,286,852.56 = 258,868.46/x
  3. Step 3: Cross multiply
    857,923.28x = 1,286,852.56 × 258,868.46
  4. Step 4: Simplify right side
    857,923.28x = 333,125,540,454.26
  5. Step 5: Solve for x
    x = 333,125,540,454.26/857,923.28
  6. Step 6: Final answer
    x = 388,292.93

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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.