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Finding the Fourth Proportional to 408,477.60, 612,295.20 and 183,945.60

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Solution

The fourth proportional to 408,477.60, 612,295.20 and 183,945.60 is: 275,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,477.60 : 612,295.20 = 183,945.60 : x
  2. Step 2: Convert to fraction form
    408,477.60/612,295.20 = 183,945.60/x
  3. Step 3: Cross multiply
    408,477.60x = 612,295.20 × 183,945.60
  4. Step 4: Simplify right side
    408,477.60x = 112,629,007,941.12
  5. Step 5: Solve for x
    x = 112,629,007,941.12/408,477.60
  6. Step 6: Final answer
    x = 275,728.73

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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.