Home / 1,291,919.66-1,936,576.76-812,490.03

Finding the Fourth Proportional to 1,291,919.66, 1,936,576.76 and 812,490.03

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Solution

The fourth proportional to 1,291,919.66, 1,936,576.76 and 812,490.03 is: 1,217,915.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,919.66 : 1,936,576.76 = 812,490.03 : x
  2. Step 2: Convert to fraction form
    1,291,919.66/1,936,576.76 = 812,490.03/x
  3. Step 3: Cross multiply
    1,291,919.66x = 1,936,576.76 × 812,490.03
  4. Step 4: Simplify right side
    1,291,919.66x = 1,573,449,305,767.25
  5. Step 5: Solve for x
    x = 1,573,449,305,767.25/1,291,919.66
  6. Step 6: Final answer
    x = 1,217,915.76

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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.