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Finding the Fourth Proportional to 624,392.55, 937,081.44 and 320,774.58

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Solution

The fourth proportional to 624,392.55, 937,081.44 and 320,774.58 is: 481,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,392.55 : 937,081.44 = 320,774.58 : x
  2. Step 2: Convert to fraction form
    624,392.55/937,081.44 = 320,774.58/x
  3. Step 3: Cross multiply
    624,392.55x = 937,081.44 × 320,774.58
  4. Step 4: Simplify right side
    624,392.55x = 300,591,905,341.80
  5. Step 5: Solve for x
    x = 300,591,905,341.80/624,392.55
  6. Step 6: Final answer
    x = 481,414.95

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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.