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Finding the Fourth Proportional to 404,688.80, 607,033.20 and 254,441.90

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Solution

The fourth proportional to 404,688.80, 607,033.20 and 254,441.90 is: 381,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,688.80 : 607,033.20 = 254,441.90 : x
  2. Step 2: Convert to fraction form
    404,688.80/607,033.20 = 254,441.90/x
  3. Step 3: Cross multiply
    404,688.80x = 607,033.20 × 254,441.90
  4. Step 4: Simplify right side
    404,688.80x = 154,454,680,771.08
  5. Step 5: Solve for x
    x = 154,454,680,771.08/404,688.80
  6. Step 6: Final answer
    x = 381,662.85

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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.