Home / 711,156.44-981,206.67-405,226.30

Finding the Fourth Proportional to 711,156.44, 981,206.67 and 405,226.30

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Solution

The fourth proportional to 711,156.44, 981,206.67 and 405,226.30 is: 559,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,156.44 : 981,206.67 = 405,226.30 : x
  2. Step 2: Convert to fraction form
    711,156.44/981,206.67 = 405,226.30/x
  3. Step 3: Cross multiply
    711,156.44x = 981,206.67 × 405,226.30
  4. Step 4: Simplify right side
    711,156.44x = 397,610,743,147.03
  5. Step 5: Solve for x
    x = 397,610,743,147.03/711,156.44
  6. Step 6: Final answer
    x = 559,104.47

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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.