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Finding the Fourth Proportional to 5,984,690.40, 8,978,296.54 and 1,940,862.90

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Solution

The fourth proportional to 5,984,690.40, 8,978,296.54 and 1,940,862.90 is: 2,911,703.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,984,690.40 : 8,978,296.54 = 1,940,862.90 : x
  2. Step 2: Convert to fraction form
    5,984,690.40/8,978,296.54 = 1,940,862.90/x
  3. Step 3: Cross multiply
    5,984,690.40x = 8,978,296.54 × 1,940,862.90
  4. Step 4: Simplify right side
    5,984,690.40x = 17,425,642,644,110.68
  5. Step 5: Solve for x
    x = 17,425,642,644,110.68/5,984,690.40
  6. Step 6: Final answer
    x = 2,911,703.28

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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.