Home / 1,305,385.76-1,958,078.52-406,899.92

Finding the Fourth Proportional to 1,305,385.76, 1,958,078.52 and 406,899.92

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Solution

The fourth proportional to 1,305,385.76, 1,958,078.52 and 406,899.92 is: 610,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,385.76 : 1,958,078.52 = 406,899.92 : x
  2. Step 2: Convert to fraction form
    1,305,385.76/1,958,078.52 = 406,899.92/x
  3. Step 3: Cross multiply
    1,305,385.76x = 1,958,078.52 × 406,899.92
  4. Step 4: Simplify right side
    1,305,385.76x = 796,741,993,141.72
  5. Step 5: Solve for x
    x = 796,741,993,141.72/1,305,385.76
  6. Step 6: Final answer
    x = 610,349.84

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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.