Home / 876,910.72-1,210,079.64-494,885.56

Finding the Fourth Proportional to 876,910.72, 1,210,079.64 and 494,885.56

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Solution

The fourth proportional to 876,910.72, 1,210,079.64 and 494,885.56 is: 682,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,910.72 : 1,210,079.64 = 494,885.56 : x
  2. Step 2: Convert to fraction form
    876,910.72/1,210,079.64 = 494,885.56/x
  3. Step 3: Cross multiply
    876,910.72x = 1,210,079.64 × 494,885.56
  4. Step 4: Simplify right side
    876,910.72x = 598,850,940,286.00
  5. Step 5: Solve for x
    x = 598,850,940,286.00/876,910.72
  6. Step 6: Final answer
    x = 682,909.82

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1.5x scale

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.