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Finding the Fourth Proportional to 326,401.71, 489,208.85 and 168,544.11

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Solution

The fourth proportional to 326,401.71, 489,208.85 and 168,544.11 is: 252,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,401.71 : 489,208.85 = 168,544.11 : x
  2. Step 2: Convert to fraction form
    326,401.71/489,208.85 = 168,544.11/x
  3. Step 3: Cross multiply
    326,401.71x = 489,208.85 × 168,544.11
  4. Step 4: Simplify right side
    326,401.71x = 82,453,269,384.65
  5. Step 5: Solve for x
    x = 82,453,269,384.65/326,401.71
  6. Step 6: Final answer
    x = 252,612.86

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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.