Home / 857,926.11-1,286,996.42-258,886.29

Finding the Fourth Proportional to 857,926.11, 1,286,996.42 and 258,886.29

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Solution

The fourth proportional to 857,926.11, 1,286,996.42 and 258,886.29 is: 388,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,926.11 : 1,286,996.42 = 258,886.29 : x
  2. Step 2: Convert to fraction form
    857,926.11/1,286,996.42 = 258,886.29/x
  3. Step 3: Cross multiply
    857,926.11x = 1,286,996.42 × 258,886.29
  4. Step 4: Simplify right side
    857,926.11x = 333,185,729,064.30
  5. Step 5: Solve for x
    x = 333,185,729,064.30/857,926.11
  6. Step 6: Final answer
    x = 388,361.80

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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.