Home / 436,863.32-654,740.86-196,721

Finding the Fourth Proportional to 436,863.32, 654,740.86 and 196,721

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Solution

The fourth proportional to 436,863.32, 654,740.86 and 196,721 is: 294,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,863.32 : 654,740.86 = 196,721 : x
  2. Step 2: Convert to fraction form
    436,863.32/654,740.86 = 196,721/x
  3. Step 3: Cross multiply
    436,863.32x = 654,740.86 × 196,721
  4. Step 4: Simplify right side
    436,863.32x = 128,801,276,720.06
  5. Step 5: Solve for x
    x = 128,801,276,720.06/436,863.32
  6. Step 6: Final answer
    x = 294,831.98

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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.