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Finding the Fourth Proportional to 326,050.80, 489,076.20 and 270,063.60

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Solution

The fourth proportional to 326,050.80, 489,076.20 and 270,063.60 is: 405,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,050.80 : 489,076.20 = 270,063.60 : x
  2. Step 2: Convert to fraction form
    326,050.80/489,076.20 = 270,063.60/x
  3. Step 3: Cross multiply
    326,050.80x = 489,076.20 × 270,063.60
  4. Step 4: Simplify right side
    326,050.80x = 132,081,679,246.32
  5. Step 5: Solve for x
    x = 132,081,679,246.32/326,050.80
  6. Step 6: Final answer
    x = 405,095.40

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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.