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Finding the Fourth Proportional to 515,568.46, 773,340.96 and 303,680.50

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Solution

The fourth proportional to 515,568.46, 773,340.96 and 303,680.50 is: 455,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,568.46 : 773,340.96 = 303,680.50 : x
  2. Step 2: Convert to fraction form
    515,568.46/773,340.96 = 303,680.50/x
  3. Step 3: Cross multiply
    515,568.46x = 773,340.96 × 303,680.50
  4. Step 4: Simplify right side
    515,568.46x = 234,848,569,403.28
  5. Step 5: Solve for x
    x = 234,848,569,403.28/515,568.46
  6. Step 6: Final answer
    x = 455,513.84

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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.