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Finding the Fourth Proportional to 1,739,679.30, 2,606,408.55 and 1,490,847.30

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Solution

The fourth proportional to 1,739,679.30, 2,606,408.55 and 1,490,847.30 is: 2,233,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739,679.30 : 2,606,408.55 = 1,490,847.30 : x
  2. Step 2: Convert to fraction form
    1,739,679.30/2,606,408.55 = 1,490,847.30/x
  3. Step 3: Cross multiply
    1,739,679.30x = 2,606,408.55 × 1,490,847.30
  4. Step 4: Simplify right side
    1,739,679.30x = 3,885,757,149,464.42
  5. Step 5: Solve for x
    x = 3,885,757,149,464.42/1,739,679.30
  6. Step 6: Final answer
    x = 2,233,605.44

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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.