Home / 857,918.04-1,286,844.68-258,863.22

Finding the Fourth Proportional to 857,918.04, 1,286,844.68 and 258,863.22

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Solution

The fourth proportional to 857,918.04, 1,286,844.68 and 258,863.22 is: 388,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,918.04 : 1,286,844.68 = 258,863.22 : x
  2. Step 2: Convert to fraction form
    857,918.04/1,286,844.68 = 258,863.22/x
  3. Step 3: Cross multiply
    857,918.04x = 1,286,844.68 × 258,863.22
  4. Step 4: Simplify right side
    857,918.04x = 333,116,757,504.67
  5. Step 5: Solve for x
    x = 333,116,757,504.67/857,918.04
  6. Step 6: Final answer
    x = 388,285.06

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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.