Home / 1,331,576.18-1,997,660.26-621,216.71

Finding the Fourth Proportional to 1,331,576.18, 1,997,660.26 and 621,216.71

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Solution

The fourth proportional to 1,331,576.18, 1,997,660.26 and 621,216.71 is: 931,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,576.18 : 1,997,660.26 = 621,216.71 : x
  2. Step 2: Convert to fraction form
    1,331,576.18/1,997,660.26 = 621,216.71/x
  3. Step 3: Cross multiply
    1,331,576.18x = 1,997,660.26 × 621,216.71
  4. Step 4: Simplify right side
    1,331,576.18x = 1,240,979,934,414.94
  5. Step 5: Solve for x
    x = 1,240,979,934,414.94/1,331,576.18
  6. Step 6: Final answer
    x = 931,963.15

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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.