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Finding the Fourth Proportional to 531,624.28, 796,533.72 and 320,819.28

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Solution

The fourth proportional to 531,624.28, 796,533.72 and 320,819.28 is: 480,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,624.28 : 796,533.72 = 320,819.28 : x
  2. Step 2: Convert to fraction form
    531,624.28/796,533.72 = 320,819.28/x
  3. Step 3: Cross multiply
    531,624.28x = 796,533.72 × 320,819.28
  4. Step 4: Simplify right side
    531,624.28x = 255,543,374,546.12
  5. Step 5: Solve for x
    x = 255,543,374,546.12/531,624.28
  6. Step 6: Final answer
    x = 480,684.17

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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.