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Finding the Fourth Proportional to 326,374.38, 489,755.66 and 176,611.64

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Solution

The fourth proportional to 326,374.38, 489,755.66 and 176,611.64 is: 265,022.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,374.38 : 489,755.66 = 176,611.64 : x
  2. Step 2: Convert to fraction form
    326,374.38/489,755.66 = 176,611.64/x
  3. Step 3: Cross multiply
    326,374.38x = 489,755.66 × 176,611.64
  4. Step 4: Simplify right side
    326,374.38x = 86,496,546,980.05
  5. Step 5: Solve for x
    x = 86,496,546,980.05/326,374.38
  6. Step 6: Final answer
    x = 265,022.48

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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.