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Finding the Fourth Proportional to 1,945,958.77, 2,917,958.19 and 648,651.84

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Solution

The fourth proportional to 1,945,958.77, 2,917,958.19 and 648,651.84 is: 972,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,958.77 : 2,917,958.19 = 648,651.84 : x
  2. Step 2: Convert to fraction form
    1,945,958.77/2,917,958.19 = 648,651.84/x
  3. Step 3: Cross multiply
    1,945,958.77x = 2,917,958.19 × 648,651.84
  4. Step 4: Simplify right side
    1,945,958.77x = 1,892,738,948,986.57
  5. Step 5: Solve for x
    x = 1,892,738,948,986.57/1,945,958.77
  6. Step 6: Final answer
    x = 972,651.11

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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.