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Finding the Fourth Proportional to 451,304.84, 622,441.90 and 383,546.10

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Solution

The fourth proportional to 451,304.84, 622,441.90 and 383,546.10 is: 528,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,304.84 : 622,441.90 = 383,546.10 : x
  2. Step 2: Convert to fraction form
    451,304.84/622,441.90 = 383,546.10/x
  3. Step 3: Cross multiply
    451,304.84x = 622,441.90 × 383,546.10
  4. Step 4: Simplify right side
    451,304.84x = 238,735,163,221.59
  5. Step 5: Solve for x
    x = 238,735,163,221.59/451,304.84
  6. Step 6: Final answer
    x = 528,988.71

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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.