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Finding the Fourth Proportional to 326,366.66, 489,439.09 and 113,084.80

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Solution

The fourth proportional to 326,366.66, 489,439.09 and 113,084.80 is: 169,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,366.66 : 489,439.09 = 113,084.80 : x
  2. Step 2: Convert to fraction form
    326,366.66/489,439.09 = 113,084.80/x
  3. Step 3: Cross multiply
    326,366.66x = 489,439.09 × 113,084.80
  4. Step 4: Simplify right side
    326,366.66x = 55,348,121,604.83
  5. Step 5: Solve for x
    x = 55,348,121,604.83/326,366.66
  6. Step 6: Final answer
    x = 169,588.77

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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.