Home / 1,040,776.77-1,561,272.17-392,898.68

Finding the Fourth Proportional to 1,040,776.77, 1,561,272.17 and 392,898.68

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Solution

The fourth proportional to 1,040,776.77, 1,561,272.17 and 392,898.68 is: 589,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,776.77 : 1,561,272.17 = 392,898.68 : x
  2. Step 2: Convert to fraction form
    1,040,776.77/1,561,272.17 = 392,898.68/x
  3. Step 3: Cross multiply
    1,040,776.77x = 1,561,272.17 × 392,898.68
  4. Step 4: Simplify right side
    1,040,776.77x = 613,421,764,942.88
  5. Step 5: Solve for x
    x = 613,421,764,942.88/1,040,776.77
  6. Step 6: Final answer
    x = 589,388.41

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1.5x scale

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.