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Finding the Fourth Proportional to 328,546.80, 492,820.20 and 106,930.80

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Solution

The fourth proportional to 328,546.80, 492,820.20 and 106,930.80 is: 160,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,546.80 : 492,820.20 = 106,930.80 : x
  2. Step 2: Convert to fraction form
    328,546.80/492,820.20 = 106,930.80/x
  3. Step 3: Cross multiply
    328,546.80x = 492,820.20 × 106,930.80
  4. Step 4: Simplify right side
    328,546.80x = 52,697,658,242.16
  5. Step 5: Solve for x
    x = 52,697,658,242.16/328,546.80
  6. Step 6: Final answer
    x = 160,396.20

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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.