Home / 711,217.04-981,496.57-405,286.85

Finding the Fourth Proportional to 711,217.04, 981,496.57 and 405,286.85

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Solution

The fourth proportional to 711,217.04, 981,496.57 and 405,286.85 is: 559,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,217.04 : 981,496.57 = 405,286.85 : x
  2. Step 2: Convert to fraction form
    711,217.04/981,496.57 = 405,286.85/x
  3. Step 3: Cross multiply
    711,217.04x = 981,496.57 × 405,286.85
  4. Step 4: Simplify right side
    711,217.04x = 397,787,647,220.41
  5. Step 5: Solve for x
    x = 397,787,647,220.41/711,217.04
  6. Step 6: Final answer
    x = 559,305.57

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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.