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Finding the Fourth Proportional to 260,794.97, 391,192.46 and 142,401.73

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Solution

The fourth proportional to 260,794.97, 391,192.46 and 142,401.73 is: 213,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,794.97 : 391,192.46 = 142,401.73 : x
  2. Step 2: Convert to fraction form
    260,794.97/391,192.46 = 142,401.73/x
  3. Step 3: Cross multiply
    260,794.97x = 391,192.46 × 142,401.73
  4. Step 4: Simplify right side
    260,794.97x = 55,706,483,066.96
  5. Step 5: Solve for x
    x = 55,706,483,066.96/260,794.97
  6. Step 6: Final answer
    x = 213,602.60

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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.