Home / 1,405,998.41-1,940,279.67-761,419.71

Finding the Fourth Proportional to 1,405,998.41, 1,940,279.67 and 761,419.71

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Solution

The fourth proportional to 1,405,998.41, 1,940,279.67 and 761,419.71 is: 1,050,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,998.41 : 1,940,279.67 = 761,419.71 : x
  2. Step 2: Convert to fraction form
    1,405,998.41/1,940,279.67 = 761,419.71/x
  3. Step 3: Cross multiply
    1,405,998.41x = 1,940,279.67 × 761,419.71
  4. Step 4: Simplify right side
    1,405,998.41x = 1,477,367,183,650.30
  5. Step 5: Solve for x
    x = 1,477,367,183,650.30/1,405,998.41
  6. Step 6: Final answer
    x = 1,050,760.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.