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Finding the Fourth Proportional to 411,023.97, 616,597.46 and 126,690.89

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Solution

The fourth proportional to 411,023.97, 616,597.46 and 126,690.89 is: 190,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,023.97 : 616,597.46 = 126,690.89 : x
  2. Step 2: Convert to fraction form
    411,023.97/616,597.46 = 126,690.89/x
  3. Step 3: Cross multiply
    411,023.97x = 616,597.46 × 126,690.89
  4. Step 4: Simplify right side
    411,023.97x = 78,117,278,450.42
  5. Step 5: Solve for x
    x = 78,117,278,450.42/411,023.97
  6. Step 6: Final answer
    x = 190,055.29

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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.