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Finding the Fourth Proportional to 411,247.26, 616,633.45 and 126,861.45

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Solution

The fourth proportional to 411,247.26, 616,633.45 and 126,861.45 is: 190,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,247.26 : 616,633.45 = 126,861.45 : x
  2. Step 2: Convert to fraction form
    411,247.26/616,633.45 = 126,861.45/x
  3. Step 3: Cross multiply
    411,247.26x = 616,633.45 × 126,861.45
  4. Step 4: Simplify right side
    411,247.26x = 78,227,013,585.50
  5. Step 5: Solve for x
    x = 78,227,013,585.50/411,247.26
  6. Step 6: Final answer
    x = 190,218.93

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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.