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Finding the Fourth Proportional to 605,577.20, 908,365.80 and 416,620.40

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Solution

The fourth proportional to 605,577.20, 908,365.80 and 416,620.40 is: 624,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,577.20 : 908,365.80 = 416,620.40 : x
  2. Step 2: Convert to fraction form
    605,577.20/908,365.80 = 416,620.40/x
  3. Step 3: Cross multiply
    605,577.20x = 908,365.80 × 416,620.40
  4. Step 4: Simplify right side
    605,577.20x = 378,443,722,942.32
  5. Step 5: Solve for x
    x = 378,443,722,942.32/605,577.20
  6. Step 6: Final answer
    x = 624,930.60

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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.