Home / 809,964.20-1,213,196.70-669,996.20

Finding the Fourth Proportional to 809,964.20, 1,213,196.70 and 669,996.20

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Solution

The fourth proportional to 809,964.20, 1,213,196.70 and 669,996.20 is: 1,003,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,964.20 : 1,213,196.70 = 669,996.20 : x
  2. Step 2: Convert to fraction form
    809,964.20/1,213,196.70 = 669,996.20/x
  3. Step 3: Cross multiply
    809,964.20x = 1,213,196.70 × 669,996.20
  4. Step 4: Simplify right side
    809,964.20x = 812,837,178,852.54
  5. Step 5: Solve for x
    x = 812,837,178,852.54/809,964.20
  6. Step 6: Final answer
    x = 1,003,547.04

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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.