Home / 1,331,108.40-1,996,662.60-911,204.40

Finding the Fourth Proportional to 1,331,108.40, 1,996,662.60 and 911,204.40

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Solution

The fourth proportional to 1,331,108.40, 1,996,662.60 and 911,204.40 is: 1,366,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,108.40 : 1,996,662.60 = 911,204.40 : x
  2. Step 2: Convert to fraction form
    1,331,108.40/1,996,662.60 = 911,204.40/x
  3. Step 3: Cross multiply
    1,331,108.40x = 1,996,662.60 × 911,204.40
  4. Step 4: Simplify right side
    1,331,108.40x = 1,819,367,746,435.44
  5. Step 5: Solve for x
    x = 1,819,367,746,435.44/1,331,108.40
  6. Step 6: Final answer
    x = 1,366,806.60

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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.