Home / 711,446.82-981,823.86-405,571.38

Finding the Fourth Proportional to 711,446.82, 981,823.86 and 405,571.38

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Solution

The fourth proportional to 711,446.82, 981,823.86 and 405,571.38 is: 559,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,446.82 : 981,823.86 = 405,571.38 : x
  2. Step 2: Convert to fraction form
    711,446.82/981,823.86 = 405,571.38/x
  3. Step 3: Cross multiply
    711,446.82x = 981,823.86 × 405,571.38
  4. Step 4: Simplify right side
    711,446.82x = 398,199,657,817.13
  5. Step 5: Solve for x
    x = 398,199,657,817.13/711,446.82
  6. Step 6: Final answer
    x = 559,704.04

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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.