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Finding the Fourth Proportional to 323,842.61, 485,523.97 and 155,202.33

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Solution

The fourth proportional to 323,842.61, 485,523.97 and 155,202.33 is: 232,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,842.61 : 485,523.97 = 155,202.33 : x
  2. Step 2: Convert to fraction form
    323,842.61/485,523.97 = 155,202.33/x
  3. Step 3: Cross multiply
    323,842.61x = 485,523.97 × 155,202.33
  4. Step 4: Simplify right side
    323,842.61x = 75,354,450,989.50
  5. Step 5: Solve for x
    x = 75,354,450,989.50/323,842.61
  6. Step 6: Final answer
    x = 232,688.50

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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.