Home / 1,282,185.30-1,777,507.19-1,213,929.03

Finding the Fourth Proportional to 1,282,185.30, 1,777,507.19 and 1,213,929.03

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Solution

The fourth proportional to 1,282,185.30, 1,777,507.19 and 1,213,929.03 is: 1,682,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,185.30 : 1,777,507.19 = 1,213,929.03 : x
  2. Step 2: Convert to fraction form
    1,282,185.30/1,777,507.19 = 1,213,929.03/x
  3. Step 3: Cross multiply
    1,282,185.30x = 1,777,507.19 × 1,213,929.03
  4. Step 4: Simplify right side
    1,282,185.30x = 2,157,767,572,905.08
  5. Step 5: Solve for x
    x = 2,157,767,572,905.08/1,282,185.30
  6. Step 6: Final answer
    x = 1,682,882.79

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.