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Finding the Fourth Proportional to 711,954.22, 982,493.29 and 385,267

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Solution

The fourth proportional to 711,954.22, 982,493.29 and 385,267 is: 531,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,954.22 : 982,493.29 = 385,267 : x
  2. Step 2: Convert to fraction form
    711,954.22/982,493.29 = 385,267/x
  3. Step 3: Cross multiply
    711,954.22x = 982,493.29 × 385,267
  4. Step 4: Simplify right side
    711,954.22x = 378,522,242,358.43
  5. Step 5: Solve for x
    x = 378,522,242,358.43/711,954.22
  6. Step 6: Final answer
    x = 531,666.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.