Home / 1,939,133.70-2,910,029.13-676,961.28

Finding the Fourth Proportional to 1,939,133.70, 2,910,029.13 and 676,961.28

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Solution

The fourth proportional to 1,939,133.70, 2,910,029.13 and 676,961.28 is: 1,015,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,133.70 : 2,910,029.13 = 676,961.28 : x
  2. Step 2: Convert to fraction form
    1,939,133.70/2,910,029.13 = 676,961.28/x
  3. Step 3: Cross multiply
    1,939,133.70x = 2,910,029.13 × 676,961.28
  4. Step 4: Simplify right side
    1,939,133.70x = 1,969,977,044,682.09
  5. Step 5: Solve for x
    x = 1,969,977,044,682.09/1,939,133.70
  6. Step 6: Final answer
    x = 1,015,905.73

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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.