Home / 711,202.89-981,409.59-405,269.54

Finding the Fourth Proportional to 711,202.89, 981,409.59 and 405,269.54

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Solution

The fourth proportional to 711,202.89, 981,409.59 and 405,269.54 is: 559,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,202.89 : 981,409.59 = 405,269.54 : x
  2. Step 2: Convert to fraction form
    711,202.89/981,409.59 = 405,269.54/x
  3. Step 3: Cross multiply
    711,202.89x = 981,409.59 × 405,269.54
  4. Step 4: Simplify right side
    711,202.89x = 397,735,408,183.84
  5. Step 5: Solve for x
    x = 397,735,408,183.84/711,202.89
  6. Step 6: Final answer
    x = 559,243.24

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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.