Home / 1,188,182.81-1,781,807.81-419,516.61

Finding the Fourth Proportional to 1,188,182.81, 1,781,807.81 and 419,516.61

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Solution

The fourth proportional to 1,188,182.81, 1,781,807.81 and 419,516.61 is: 629,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,182.81 : 1,781,807.81 = 419,516.61 : x
  2. Step 2: Convert to fraction form
    1,188,182.81/1,781,807.81 = 419,516.61/x
  3. Step 3: Cross multiply
    1,188,182.81x = 1,781,807.81 × 419,516.61
  4. Step 4: Simplify right side
    1,188,182.81x = 747,497,963,213.69
  5. Step 5: Solve for x
    x = 747,497,963,213.69/1,188,182.81
  6. Step 6: Final answer
    x = 629,110.23

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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.