Home / 857,821.01-1,286,740.71-258,787.35

Finding the Fourth Proportional to 857,821.01, 1,286,740.71 and 258,787.35

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Solution

The fourth proportional to 857,821.01, 1,286,740.71 and 258,787.35 is: 388,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,821.01 : 1,286,740.71 = 258,787.35 : x
  2. Step 2: Convert to fraction form
    857,821.01/1,286,740.71 = 258,787.35/x
  3. Step 3: Cross multiply
    857,821.01x = 1,286,740.71 × 258,787.35
  4. Step 4: Simplify right side
    857,821.01x = 332,992,218,478.02
  5. Step 5: Solve for x
    x = 332,992,218,478.02/857,821.01
  6. Step 6: Final answer
    x = 388,183.80

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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.