Home / 809,114.40-1,212,505.20-359,467.20

Finding the Fourth Proportional to 809,114.40, 1,212,505.20 and 359,467.20

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Solution

The fourth proportional to 809,114.40, 1,212,505.20 and 359,467.20 is: 538,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,114.40 : 1,212,505.20 = 359,467.20 : x
  2. Step 2: Convert to fraction form
    809,114.40/1,212,505.20 = 359,467.20/x
  3. Step 3: Cross multiply
    809,114.40x = 1,212,505.20 × 359,467.20
  4. Step 4: Simplify right side
    809,114.40x = 435,855,849,229.44
  5. Step 5: Solve for x
    x = 435,855,849,229.44/809,114.40
  6. Step 6: Final answer
    x = 538,682.60

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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.