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Finding the Fourth Proportional to 706,278.44, 974,601.54 and 391,958.24

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Solution

The fourth proportional to 706,278.44, 974,601.54 and 391,958.24 is: 540,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,278.44 : 974,601.54 = 391,958.24 : x
  2. Step 2: Convert to fraction form
    706,278.44/974,601.54 = 391,958.24/x
  3. Step 3: Cross multiply
    706,278.44x = 974,601.54 × 391,958.24
  4. Step 4: Simplify right side
    706,278.44x = 382,003,099,446.68
  5. Step 5: Solve for x
    x = 382,003,099,446.68/706,278.44
  6. Step 6: Final answer
    x = 540,867.56

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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.