Home / 5,211,028.80-7,816,543.20-3,419,438.40

Finding the Fourth Proportional to 5,211,028.80, 7,816,543.20 and 3,419,438.40

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Solution

The fourth proportional to 5,211,028.80, 7,816,543.20 and 3,419,438.40 is: 5,129,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,028.80 : 7,816,543.20 = 3,419,438.40 : x
  2. Step 2: Convert to fraction form
    5,211,028.80/7,816,543.20 = 3,419,438.40/x
  3. Step 3: Cross multiply
    5,211,028.80x = 7,816,543.20 × 3,419,438.40
  4. Step 4: Simplify right side
    5,211,028.80x = 26,728,187,973,338.88
  5. Step 5: Solve for x
    x = 26,728,187,973,338.88/5,211,028.80
  6. Step 6: Final answer
    x = 5,129,157.60

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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.