Home / 1,383,384.98-1,909,024.26-763,214.96

Finding the Fourth Proportional to 1,383,384.98, 1,909,024.26 and 763,214.96

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Solution

The fourth proportional to 1,383,384.98, 1,909,024.26 and 763,214.96 is: 1,053,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,384.98 : 1,909,024.26 = 763,214.96 : x
  2. Step 2: Convert to fraction form
    1,383,384.98/1,909,024.26 = 763,214.96/x
  3. Step 3: Cross multiply
    1,383,384.98x = 1,909,024.26 × 763,214.96
  4. Step 4: Simplify right side
    1,383,384.98x = 1,456,995,874,234.93
  5. Step 5: Solve for x
    x = 1,456,995,874,234.93/1,383,384.98
  6. Step 6: Final answer
    x = 1,053,210.71

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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.