Home / 654,910.56-981,364.32-440,885.76

Finding the Fourth Proportional to 654,910.56, 981,364.32 and 440,885.76

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Solution

The fourth proportional to 654,910.56, 981,364.32 and 440,885.76 is: 660,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,910.56 : 981,364.32 = 440,885.76 : x
  2. Step 2: Convert to fraction form
    654,910.56/981,364.32 = 440,885.76/x
  3. Step 3: Cross multiply
    654,910.56x = 981,364.32 × 440,885.76
  4. Step 4: Simplify right side
    654,910.56x = 432,669,554,060.08
  5. Step 5: Solve for x
    x = 432,669,554,060.08/654,910.56
  6. Step 6: Final answer
    x = 660,654.42

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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.