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Finding the Fourth Proportional to 320,689.40, 481,200.08 and 232,669.40

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Solution

The fourth proportional to 320,689.40, 481,200.08 and 232,669.40 is: 349,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,689.40 : 481,200.08 = 232,669.40 : x
  2. Step 2: Convert to fraction form
    320,689.40/481,200.08 = 232,669.40/x
  3. Step 3: Cross multiply
    320,689.40x = 481,200.08 × 232,669.40
  4. Step 4: Simplify right side
    320,689.40x = 111,960,530,324.21
  5. Step 5: Solve for x
    x = 111,960,530,324.21/320,689.40
  6. Step 6: Final answer
    x = 349,124.52

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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.