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Finding the Fourth Proportional to 416,102.80, 624,154.20 and 404,438.80

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Solution

The fourth proportional to 416,102.80, 624,154.20 and 404,438.80 is: 606,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,102.80 : 624,154.20 = 404,438.80 : x
  2. Step 2: Convert to fraction form
    416,102.80/624,154.20 = 404,438.80/x
  3. Step 3: Cross multiply
    416,102.80x = 624,154.20 × 404,438.80
  4. Step 4: Simplify right side
    416,102.80x = 252,432,175,662.96
  5. Step 5: Solve for x
    x = 252,432,175,662.96/416,102.80
  6. Step 6: Final answer
    x = 606,658.20

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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.