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Finding the Fourth Proportional to 500,972.50, 751,502.50 and 126,995.50

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Solution

The fourth proportional to 500,972.50, 751,502.50 and 126,995.50 is: 190,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,972.50 : 751,502.50 = 126,995.50 : x
  2. Step 2: Convert to fraction form
    500,972.50/751,502.50 = 126,995.50/x
  3. Step 3: Cross multiply
    500,972.50x = 751,502.50 × 126,995.50
  4. Step 4: Simplify right side
    500,972.50x = 95,437,435,738.75
  5. Step 5: Solve for x
    x = 95,437,435,738.75/500,972.50
  6. Step 6: Final answer
    x = 190,504.34

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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.