Home / 1,188,200.40-1,782,300.60-656,759.40

Finding the Fourth Proportional to 1,188,200.40, 1,782,300.60 and 656,759.40

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Solution

The fourth proportional to 1,188,200.40, 1,782,300.60 and 656,759.40 is: 985,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,200.40 : 1,782,300.60 = 656,759.40 : x
  2. Step 2: Convert to fraction form
    1,188,200.40/1,782,300.60 = 656,759.40/x
  3. Step 3: Cross multiply
    1,188,200.40x = 1,782,300.60 × 656,759.40
  4. Step 4: Simplify right side
    1,188,200.40x = 1,170,542,672,675.64
  5. Step 5: Solve for x
    x = 1,170,542,672,675.64/1,188,200.40
  6. Step 6: Final answer
    x = 985,139.10

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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.