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Finding the Fourth Proportional to 499,515.84, 688,871.77 and 327,371.11

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Solution

The fourth proportional to 499,515.84, 688,871.77 and 327,371.11 is: 451,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,515.84 : 688,871.77 = 327,371.11 : x
  2. Step 2: Convert to fraction form
    499,515.84/688,871.77 = 327,371.11/x
  3. Step 3: Cross multiply
    499,515.84x = 688,871.77 × 327,371.11
  4. Step 4: Simplify right side
    499,515.84x = 225,516,713,451.96
  5. Step 5: Solve for x
    x = 225,516,713,451.96/499,515.84
  6. Step 6: Final answer
    x = 451,470.59

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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.