Home / 3,940,684.80-5,908,561.92-1,665,031.68

Finding the Fourth Proportional to 3,940,684.80, 5,908,561.92 and 1,665,031.68

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Solution

The fourth proportional to 3,940,684.80, 5,908,561.92 and 1,665,031.68 is: 2,496,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,684.80 : 5,908,561.92 = 1,665,031.68 : x
  2. Step 2: Convert to fraction form
    3,940,684.80/5,908,561.92 = 1,665,031.68/x
  3. Step 3: Cross multiply
    3,940,684.80x = 5,908,561.92 × 1,665,031.68
  4. Step 4: Simplify right side
    3,940,684.80x = 9,837,942,780,041.63
  5. Step 5: Solve for x
    x = 9,837,942,780,041.63/3,940,684.80
  6. Step 6: Final answer
    x = 2,496,505.88

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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.