Home / 1,296,696.21-1,945,333.48-398,228.61

Finding the Fourth Proportional to 1,296,696.21, 1,945,333.48 and 398,228.61

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Solution

The fourth proportional to 1,296,696.21, 1,945,333.48 and 398,228.61 is: 597,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,696.21 : 1,945,333.48 = 398,228.61 : x
  2. Step 2: Convert to fraction form
    1,296,696.21/1,945,333.48 = 398,228.61/x
  3. Step 3: Cross multiply
    1,296,696.21x = 1,945,333.48 × 398,228.61
  4. Step 4: Simplify right side
    1,296,696.21x = 774,687,447,726.86
  5. Step 5: Solve for x
    x = 774,687,447,726.86/1,296,696.21
  6. Step 6: Final answer
    x = 597,431.72

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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.