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Finding the Fourth Proportional to 500,785.53, 751,205.66 and 126,811.77

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Solution

The fourth proportional to 500,785.53, 751,205.66 and 126,811.77 is: 190,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,785.53 : 751,205.66 = 126,811.77 : x
  2. Step 2: Convert to fraction form
    500,785.53/751,205.66 = 126,811.77/x
  3. Step 3: Cross multiply
    500,785.53x = 751,205.66 × 126,811.77
  4. Step 4: Simplify right side
    500,785.53x = 95,261,719,378.62
  5. Step 5: Solve for x
    x = 95,261,719,378.62/500,785.53
  6. Step 6: Final answer
    x = 190,224.58

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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.