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Finding the Fourth Proportional to 326,590.92, 489,888.81 and 89,946.59

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Solution

The fourth proportional to 326,590.92, 489,888.81 and 89,946.59 is: 134,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,590.92 : 489,888.81 = 89,946.59 : x
  2. Step 2: Convert to fraction form
    326,590.92/489,888.81 = 89,946.59/x
  3. Step 3: Cross multiply
    326,590.92x = 489,888.81 × 89,946.59
  4. Step 4: Simplify right side
    326,590.92x = 44,063,825,489.21
  5. Step 5: Solve for x
    x = 44,063,825,489.21/326,590.92
  6. Step 6: Final answer
    x = 134,920.55

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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.