Home / 1,388,989.64-2,093,895.20-1,296,402.66

Finding the Fourth Proportional to 1,388,989.64, 2,093,895.20 and 1,296,402.66

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Solution

The fourth proportional to 1,388,989.64, 2,093,895.20 and 1,296,402.66 is: 1,954,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,989.64 : 2,093,895.20 = 1,296,402.66 : x
  2. Step 2: Convert to fraction form
    1,388,989.64/2,093,895.20 = 1,296,402.66/x
  3. Step 3: Cross multiply
    1,388,989.64x = 2,093,895.20 × 1,296,402.66
  4. Step 4: Simplify right side
    1,388,989.64x = 2,714,531,300,559.22
  5. Step 5: Solve for x
    x = 2,714,531,300,559.22/1,388,989.64
  6. Step 6: Final answer
    x = 1,954,320.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.