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Finding the Fourth Proportional to 456,324.60, 684,584.10 and 140,813.40

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Solution

The fourth proportional to 456,324.60, 684,584.10 and 140,813.40 is: 211,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,324.60 : 684,584.10 = 140,813.40 : x
  2. Step 2: Convert to fraction form
    456,324.60/684,584.10 = 140,813.40/x
  3. Step 3: Cross multiply
    456,324.60x = 684,584.10 × 140,813.40
  4. Step 4: Simplify right side
    456,324.60x = 96,398,614,706.94
  5. Step 5: Solve for x
    x = 96,398,614,706.94/456,324.60
  6. Step 6: Final answer
    x = 211,250.09

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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.