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Finding the Fourth Proportional to 326,373.96, 489,167.28 and 168,516.30

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Solution

The fourth proportional to 326,373.96, 489,167.28 and 168,516.30 is: 252,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,373.96 : 489,167.28 = 168,516.30 : x
  2. Step 2: Convert to fraction form
    326,373.96/489,167.28 = 168,516.30/x
  3. Step 3: Cross multiply
    326,373.96x = 489,167.28 × 168,516.30
  4. Step 4: Simplify right side
    326,373.96x = 82,432,660,106.66
  5. Step 5: Solve for x
    x = 82,432,660,106.66/326,373.96
  6. Step 6: Final answer
    x = 252,571.19

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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.