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Finding the Fourth Proportional to 323,109.50, 484,439.81 and 143,096.84

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Solution

The fourth proportional to 323,109.50, 484,439.81 and 143,096.84 is: 214,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,109.50 : 484,439.81 = 143,096.84 : x
  2. Step 2: Convert to fraction form
    323,109.50/484,439.81 = 143,096.84/x
  3. Step 3: Cross multiply
    323,109.50x = 484,439.81 × 143,096.84
  4. Step 4: Simplify right side
    323,109.50x = 69,321,803,559.00
  5. Step 5: Solve for x
    x = 69,321,803,559.00/323,109.50
  6. Step 6: Final answer
    x = 214,545.85

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1.5x scale

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.