Home / 985,380.20-1,477,611-511,938.44

Finding the Fourth Proportional to 985,380.20, 1,477,611 and 511,938.44

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Solution

The fourth proportional to 985,380.20, 1,477,611 and 511,938.44 is: 767,669.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,380.20 : 1,477,611 = 511,938.44 : x
  2. Step 2: Convert to fraction form
    985,380.20/1,477,611 = 511,938.44/x
  3. Step 3: Cross multiply
    985,380.20x = 1,477,611 × 511,938.44
  4. Step 4: Simplify right side
    985,380.20x = 756,445,870,266.84
  5. Step 5: Solve for x
    x = 756,445,870,266.84/985,380.20
  6. Step 6: Final answer
    x = 767,669.04

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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.