Home / 1,678,109.40-2,517,528.60-613,149.75

Finding the Fourth Proportional to 1,678,109.40, 2,517,528.60 and 613,149.75

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Solution

The fourth proportional to 1,678,109.40, 2,517,528.60 and 613,149.75 is: 919,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,109.40 : 2,517,528.60 = 613,149.75 : x
  2. Step 2: Convert to fraction form
    1,678,109.40/2,517,528.60 = 613,149.75/x
  3. Step 3: Cross multiply
    1,678,109.40x = 2,517,528.60 × 613,149.75
  4. Step 4: Simplify right side
    1,678,109.40x = 1,543,622,031,707.85
  5. Step 5: Solve for x
    x = 1,543,622,031,707.85/1,678,109.40
  6. Step 6: Final answer
    x = 919,857.81

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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.