Home / 930,884.80-1,396,456.80-398,401.60

Finding the Fourth Proportional to 930,884.80, 1,396,456.80 and 398,401.60

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Solution

The fourth proportional to 930,884.80, 1,396,456.80 and 398,401.60 is: 597,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,884.80 : 1,396,456.80 = 398,401.60 : x
  2. Step 2: Convert to fraction form
    930,884.80/1,396,456.80 = 398,401.60/x
  3. Step 3: Cross multiply
    930,884.80x = 1,396,456.80 × 398,401.60
  4. Step 4: Simplify right side
    930,884.80x = 556,350,623,450.88
  5. Step 5: Solve for x
    x = 556,350,623,450.88/930,884.80
  6. Step 6: Final answer
    x = 597,657.87

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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.