Home / 1,985,171.70-2,969,884.35-1,721,856.90

Finding the Fourth Proportional to 1,985,171.70, 2,969,884.35 and 1,721,856.90

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Solution

The fourth proportional to 1,985,171.70, 2,969,884.35 and 1,721,856.90 is: 2,575,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,171.70 : 2,969,884.35 = 1,721,856.90 : x
  2. Step 2: Convert to fraction form
    1,985,171.70/2,969,884.35 = 1,721,856.90/x
  3. Step 3: Cross multiply
    1,985,171.70x = 2,969,884.35 × 1,721,856.90
  4. Step 4: Simplify right side
    1,985,171.70x = 5,113,715,860,249.51
  5. Step 5: Solve for x
    x = 5,113,715,860,249.51/1,985,171.70
  6. Step 6: Final answer
    x = 2,575,956.46

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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.