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Finding the Fourth Proportional to 323,914.68, 484,875.18 and 211,352.76

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Solution

The fourth proportional to 323,914.68, 484,875.18 and 211,352.76 is: 316,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,914.68 : 484,875.18 = 211,352.76 : x
  2. Step 2: Convert to fraction form
    323,914.68/484,875.18 = 211,352.76/x
  3. Step 3: Cross multiply
    323,914.68x = 484,875.18 × 211,352.76
  4. Step 4: Simplify right side
    323,914.68x = 102,479,707,548.50
  5. Step 5: Solve for x
    x = 102,479,707,548.50/323,914.68
  6. Step 6: Final answer
    x = 316,378.71

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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.