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Finding the Fourth Proportional to 416,813.20, 625,219.80 and 195,629.20

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Solution

The fourth proportional to 416,813.20, 625,219.80 and 195,629.20 is: 293,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,813.20 : 625,219.80 = 195,629.20 : x
  2. Step 2: Convert to fraction form
    416,813.20/625,219.80 = 195,629.20/x
  3. Step 3: Cross multiply
    416,813.20x = 625,219.80 × 195,629.20
  4. Step 4: Simplify right side
    416,813.20x = 122,311,249,298.16
  5. Step 5: Solve for x
    x = 122,311,249,298.16/416,813.20
  6. Step 6: Final answer
    x = 293,443.80

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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.