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Finding the Fourth Proportional to 320,685.40, 481,194.08 and 232,665.40

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Solution

The fourth proportional to 320,685.40, 481,194.08 and 232,665.40 is: 349,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,685.40 : 481,194.08 = 232,665.40 : x
  2. Step 2: Convert to fraction form
    320,685.40/481,194.08 = 232,665.40/x
  3. Step 3: Cross multiply
    320,685.40x = 481,194.08 × 232,665.40
  4. Step 4: Simplify right side
    320,685.40x = 111,957,209,531.54
  5. Step 5: Solve for x
    x = 111,957,209,531.54/320,685.40
  6. Step 6: Final answer
    x = 349,118.52

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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.