Home / 1,761,638.70-2,640,384.45-919,757.10

Finding the Fourth Proportional to 1,761,638.70, 2,640,384.45 and 919,757.10

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Solution

The fourth proportional to 1,761,638.70, 2,640,384.45 and 919,757.10 is: 1,378,553.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,638.70 : 2,640,384.45 = 919,757.10 : x
  2. Step 2: Convert to fraction form
    1,761,638.70/2,640,384.45 = 919,757.10/x
  3. Step 3: Cross multiply
    1,761,638.70x = 2,640,384.45 × 919,757.10
  4. Step 4: Simplify right side
    1,761,638.70x = 2,428,512,344,617.10
  5. Step 5: Solve for x
    x = 2,428,512,344,617.10/1,761,638.70
  6. Step 6: Final answer
    x = 1,378,553.02

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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.