Home / 1,910,105.70-2,635,706.44-1,291,257.35

Finding the Fourth Proportional to 1,910,105.70, 2,635,706.44 and 1,291,257.35

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Solution

The fourth proportional to 1,910,105.70, 2,635,706.44 and 1,291,257.35 is: 1,781,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910,105.70 : 2,635,706.44 = 1,291,257.35 : x
  2. Step 2: Convert to fraction form
    1,910,105.70/2,635,706.44 = 1,291,257.35/x
  3. Step 3: Cross multiply
    1,910,105.70x = 2,635,706.44 × 1,291,257.35
  4. Step 4: Simplify right side
    1,910,105.70x = 3,403,375,306,703.79
  5. Step 5: Solve for x
    x = 3,403,375,306,703.79/1,910,105.70
  6. Step 6: Final answer
    x = 1,781,773.29

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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.