Home / 405,933.43-560,189.63-219,664.92

Finding the Fourth Proportional to 405,933.43, 560,189.63 and 219,664.92

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Solution

The fourth proportional to 405,933.43, 560,189.63 and 219,664.92 is: 303,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,933.43 : 560,189.63 = 219,664.92 : x
  2. Step 2: Convert to fraction form
    405,933.43/560,189.63 = 219,664.92/x
  3. Step 3: Cross multiply
    405,933.43x = 560,189.63 × 219,664.92
  4. Step 4: Simplify right side
    405,933.43x = 123,054,010,258.78
  5. Step 5: Solve for x
    x = 123,054,010,258.78/405,933.43
  6. Step 6: Final answer
    x = 303,138.40

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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.