Home / 518,119.86-777,284.56-218,601.18

Finding the Fourth Proportional to 518,119.86, 777,284.56 and 218,601.18

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Solution

The fourth proportional to 518,119.86, 777,284.56 and 218,601.18 is: 327,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,119.86 : 777,284.56 = 218,601.18 : x
  2. Step 2: Convert to fraction form
    518,119.86/777,284.56 = 218,601.18/x
  3. Step 3: Cross multiply
    518,119.86x = 777,284.56 × 218,601.18
  4. Step 4: Simplify right side
    518,119.86x = 169,915,322,011.78
  5. Step 5: Solve for x
    x = 169,915,322,011.78/518,119.86
  6. Step 6: Final answer
    x = 327,945.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.