Home / 1,383,385.98-1,909,025.64-763,215.96

Finding the Fourth Proportional to 1,383,385.98, 1,909,025.64 and 763,215.96

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Solution

The fourth proportional to 1,383,385.98, 1,909,025.64 and 763,215.96 is: 1,053,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,385.98 : 1,909,025.64 = 763,215.96 : x
  2. Step 2: Convert to fraction form
    1,383,385.98/1,909,025.64 = 763,215.96/x
  3. Step 3: Cross multiply
    1,383,385.98x = 1,909,025.64 × 763,215.96
  4. Step 4: Simplify right side
    1,383,385.98x = 1,456,998,836,497.21
  5. Step 5: Solve for x
    x = 1,456,998,836,497.21/1,383,385.98
  6. Step 6: Final answer
    x = 1,053,212.09

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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.