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Finding the Fourth Proportional to 411,170.77, 616,814.13 and 126,884.46

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Solution

The fourth proportional to 411,170.77, 616,814.13 and 126,884.46 is: 190,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,170.77 : 616,814.13 = 126,884.46 : x
  2. Step 2: Convert to fraction form
    411,170.77/616,814.13 = 126,884.46/x
  3. Step 3: Cross multiply
    411,170.77x = 616,814.13 × 126,884.46
  4. Step 4: Simplify right side
    411,170.77x = 78,264,127,805.42
  5. Step 5: Solve for x
    x = 78,264,127,805.42/411,170.77
  6. Step 6: Final answer
    x = 190,344.58

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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.