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Finding the Fourth Proportional to 326,532.60, 489,770.10 and 89,854.20

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Solution

The fourth proportional to 326,532.60, 489,770.10 and 89,854.20 is: 134,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,532.60 : 489,770.10 = 89,854.20 : x
  2. Step 2: Convert to fraction form
    326,532.60/489,770.10 = 89,854.20/x
  3. Step 3: Cross multiply
    326,532.60x = 489,770.10 × 89,854.20
  4. Step 4: Simplify right side
    326,532.60x = 44,007,900,519.42
  5. Step 5: Solve for x
    x = 44,007,900,519.42/326,532.60
  6. Step 6: Final answer
    x = 134,773.37

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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.