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Finding the Fourth Proportional to 1,890,559.80, 2,837,682.90 and 944,998.20

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Solution

The fourth proportional to 1,890,559.80, 2,837,682.90 and 944,998.20 is: 1,418,418.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,559.80 : 2,837,682.90 = 944,998.20 : x
  2. Step 2: Convert to fraction form
    1,890,559.80/2,837,682.90 = 944,998.20/x
  3. Step 3: Cross multiply
    1,890,559.80x = 2,837,682.90 × 944,998.20
  4. Step 4: Simplify right side
    1,890,559.80x = 2,681,605,232,670.78
  5. Step 5: Solve for x
    x = 2,681,605,232,670.78/1,890,559.80
  6. Step 6: Final answer
    x = 1,418,418.63

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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.