Home / 1,386,156.72-2,079,233.66-521,753.06

Finding the Fourth Proportional to 1,386,156.72, 2,079,233.66 and 521,753.06

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Solution

The fourth proportional to 1,386,156.72, 2,079,233.66 and 521,753.06 is: 782,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,156.72 : 2,079,233.66 = 521,753.06 : x
  2. Step 2: Convert to fraction form
    1,386,156.72/2,079,233.66 = 521,753.06/x
  3. Step 3: Cross multiply
    1,386,156.72x = 2,079,233.66 × 521,753.06
  4. Step 4: Simplify right side
    1,386,156.72x = 1,084,846,524,560.00
  5. Step 5: Solve for x
    x = 1,084,846,524,560.00/1,386,156.72
  6. Step 6: Final answer
    x = 782,629.06

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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.