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Finding the Fourth Proportional to 326,032.20, 489,048.30 and 323,958.60

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Solution

The fourth proportional to 326,032.20, 489,048.30 and 323,958.60 is: 485,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,032.20 : 489,048.30 = 323,958.60 : x
  2. Step 2: Convert to fraction form
    326,032.20/489,048.30 = 323,958.60/x
  3. Step 3: Cross multiply
    326,032.20x = 489,048.30 × 323,958.60
  4. Step 4: Simplify right side
    326,032.20x = 158,431,402,600.38
  5. Step 5: Solve for x
    x = 158,431,402,600.38/326,032.20
  6. Step 6: Final answer
    x = 485,937.90

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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.