Home / 711,197.14-981,401.66-405,263.79

Finding the Fourth Proportional to 711,197.14, 981,401.66 and 405,263.79

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Solution

The fourth proportional to 711,197.14, 981,401.66 and 405,263.79 is: 559,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,197.14 : 981,401.66 = 405,263.79 : x
  2. Step 2: Convert to fraction form
    711,197.14/981,401.66 = 405,263.79/x
  3. Step 3: Cross multiply
    711,197.14x = 981,401.66 × 405,263.79
  4. Step 4: Simplify right side
    711,197.14x = 397,726,549,310.56
  5. Step 5: Solve for x
    x = 397,726,549,310.56/711,197.14
  6. Step 6: Final answer
    x = 559,235.30

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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.