Home / 1,306,103.81-1,959,086.52-407,442.56

Finding the Fourth Proportional to 1,306,103.81, 1,959,086.52 and 407,442.56

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Solution

The fourth proportional to 1,306,103.81, 1,959,086.52 and 407,442.56 is: 611,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,103.81 : 1,959,086.52 = 407,442.56 : x
  2. Step 2: Convert to fraction form
    1,306,103.81/1,959,086.52 = 407,442.56/x
  3. Step 3: Cross multiply
    1,306,103.81x = 1,959,086.52 × 407,442.56
  4. Step 4: Simplify right side
    1,306,103.81x = 798,215,217,174.86
  5. Step 5: Solve for x
    x = 798,215,217,174.86/1,306,103.81
  6. Step 6: Final answer
    x = 611,142.25

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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.