Home / 1,288,600.80-1,777,003.44-1,186,886.88

Finding the Fourth Proportional to 1,288,600.80, 1,777,003.44 and 1,186,886.88

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Solution

The fourth proportional to 1,288,600.80, 1,777,003.44 and 1,186,886.88 is: 1,636,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,600.80 : 1,777,003.44 = 1,186,886.88 : x
  2. Step 2: Convert to fraction form
    1,288,600.80/1,777,003.44 = 1,186,886.88/x
  3. Step 3: Cross multiply
    1,288,600.80x = 1,777,003.44 × 1,186,886.88
  4. Step 4: Simplify right side
    1,288,600.80x = 2,109,102,068,650.87
  5. Step 5: Solve for x
    x = 2,109,102,068,650.87/1,288,600.80
  6. Step 6: Final answer
    x = 1,636,738.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.