Home / 986,450.20-1,479,675.30-355,136.20

Finding the Fourth Proportional to 986,450.20, 1,479,675.30 and 355,136.20

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Solution

The fourth proportional to 986,450.20, 1,479,675.30 and 355,136.20 is: 532,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,450.20 : 1,479,675.30 = 355,136.20 : x
  2. Step 2: Convert to fraction form
    986,450.20/1,479,675.30 = 355,136.20/x
  3. Step 3: Cross multiply
    986,450.20x = 1,479,675.30 × 355,136.20
  4. Step 4: Simplify right side
    986,450.20x = 525,486,263,275.86
  5. Step 5: Solve for x
    x = 525,486,263,275.86/986,450.20
  6. Step 6: Final answer
    x = 532,704.30

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Half scale
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Double scale
Find fourth proportional to 986,451.20, 1,479,676.80 and 355,137.20
Similar ratio
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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.