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Finding the Fourth Proportional to 326,273.35, 489,588.35 and 126,601.57

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Solution

The fourth proportional to 326,273.35, 489,588.35 and 126,601.57 is: 189,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,273.35 : 489,588.35 = 126,601.57 : x
  2. Step 2: Convert to fraction form
    326,273.35/489,588.35 = 126,601.57/x
  3. Step 3: Cross multiply
    326,273.35x = 489,588.35 × 126,601.57
  4. Step 4: Simplify right side
    326,273.35x = 61,982,653,763.71
  5. Step 5: Solve for x
    x = 61,982,653,763.71/326,273.35
  6. Step 6: Final answer
    x = 189,971.55

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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.