Home / 1,910,245.55-2,635,899.57-1,291,397.45

Finding the Fourth Proportional to 1,910,245.55, 2,635,899.57 and 1,291,397.45

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Solution

The fourth proportional to 1,910,245.55, 2,635,899.57 and 1,291,397.45 is: 1,781,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910,245.55 : 2,635,899.57 = 1,291,397.45 : x
  2. Step 2: Convert to fraction form
    1,910,245.55/2,635,899.57 = 1,291,397.45/x
  3. Step 3: Cross multiply
    1,910,245.55x = 2,635,899.57 × 1,291,397.45
  4. Step 4: Simplify right side
    1,910,245.55x = 3,403,993,969,974.60
  5. Step 5: Solve for x
    x = 3,403,993,969,974.60/1,910,245.55
  6. Step 6: Final answer
    x = 1,781,966.71

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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.