Home / 1,286,214.36-1,775,082.24-713,439.60

Finding the Fourth Proportional to 1,286,214.36, 1,775,082.24 and 713,439.60

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Solution

The fourth proportional to 1,286,214.36, 1,775,082.24 and 713,439.60 is: 984,605.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,214.36 : 1,775,082.24 = 713,439.60 : x
  2. Step 2: Convert to fraction form
    1,286,214.36/1,775,082.24 = 713,439.60/x
  3. Step 3: Cross multiply
    1,286,214.36x = 1,775,082.24 × 713,439.60
  4. Step 4: Simplify right side
    1,286,214.36x = 1,266,413,963,272.70
  5. Step 5: Solve for x
    x = 1,266,413,963,272.70/1,286,214.36
  6. Step 6: Final answer
    x = 984,605.68

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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.