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Finding the Fourth Proportional to 1,743,757.40, 2,617,709.70 and 986,202.20

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Solution

The fourth proportional to 1,743,757.40, 2,617,709.70 and 986,202.20 is: 1,480,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743,757.40 : 2,617,709.70 = 986,202.20 : x
  2. Step 2: Convert to fraction form
    1,743,757.40/2,617,709.70 = 986,202.20/x
  3. Step 3: Cross multiply
    1,743,757.40x = 2,617,709.70 × 986,202.20
  4. Step 4: Simplify right side
    1,743,757.40x = 2,581,591,065,101.34
  5. Step 5: Solve for x
    x = 2,581,591,065,101.34/1,743,757.40
  6. Step 6: Final answer
    x = 1,480,476.05

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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.