Home / 857,817.15-1,286,734.96-258,783.50

Finding the Fourth Proportional to 857,817.15, 1,286,734.96 and 258,783.50

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Solution

The fourth proportional to 857,817.15, 1,286,734.96 and 258,783.50 is: 388,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,817.15 : 1,286,734.96 = 258,783.50 : x
  2. Step 2: Convert to fraction form
    857,817.15/1,286,734.96 = 258,783.50/x
  3. Step 3: Cross multiply
    857,817.15x = 1,286,734.96 × 258,783.50
  4. Step 4: Simplify right side
    857,817.15x = 332,985,769,440.53
  5. Step 5: Solve for x
    x = 332,985,769,440.53/857,817.15
  6. Step 6: Final answer
    x = 388,178.03

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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.