Home / 1,405,945.28-1,940,194.82-761,350.72

Finding the Fourth Proportional to 1,405,945.28, 1,940,194.82 and 761,350.72

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Solution

The fourth proportional to 1,405,945.28, 1,940,194.82 and 761,350.72 is: 1,050,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,945.28 : 1,940,194.82 = 761,350.72 : x
  2. Step 2: Convert to fraction form
    1,405,945.28/1,940,194.82 = 761,350.72/x
  3. Step 3: Cross multiply
    1,405,945.28x = 1,940,194.82 × 761,350.72
  4. Step 4: Simplify right side
    1,405,945.28x = 1,477,168,723,147.27
  5. Step 5: Solve for x
    x = 1,477,168,723,147.27/1,405,945.28
  6. Step 6: Final answer
    x = 1,050,658.76

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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.