Home / 814,440.67-1,215,047.98-770,350.75

Finding the Fourth Proportional to 814,440.67, 1,215,047.98 and 770,350.75

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Solution

The fourth proportional to 814,440.67, 1,215,047.98 and 770,350.75 is: 1,149,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,440.67 : 1,215,047.98 = 770,350.75 : x
  2. Step 2: Convert to fraction form
    814,440.67/1,215,047.98 = 770,350.75/x
  3. Step 3: Cross multiply
    814,440.67x = 1,215,047.98 × 770,350.75
  4. Step 4: Simplify right side
    814,440.67x = 936,013,120,604.30
  5. Step 5: Solve for x
    x = 936,013,120,604.30/814,440.67
  6. Step 6: Final answer
    x = 1,149,271.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.