Home / 1,286,313.30-1,775,221.47-713,538

Finding the Fourth Proportional to 1,286,313.30, 1,775,221.47 and 713,538

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Solution

The fourth proportional to 1,286,313.30, 1,775,221.47 and 713,538 is: 984,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,313.30 : 1,775,221.47 = 713,538 : x
  2. Step 2: Convert to fraction form
    1,286,313.30/1,775,221.47 = 713,538/x
  3. Step 3: Cross multiply
    1,286,313.30x = 1,775,221.47 × 713,538
  4. Step 4: Simplify right side
    1,286,313.30x = 1,266,687,977,260.86
  5. Step 5: Solve for x
    x = 1,266,687,977,260.86/1,286,313.30
  6. Step 6: Final answer
    x = 984,742.97

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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.