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Finding the Fourth Proportional to 416,725.97, 623,308.77 and 347,919.30

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Solution

The fourth proportional to 416,725.97, 623,308.77 and 347,919.30 is: 520,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,725.97 : 623,308.77 = 347,919.30 : x
  2. Step 2: Convert to fraction form
    416,725.97/623,308.77 = 347,919.30/x
  3. Step 3: Cross multiply
    416,725.97x = 623,308.77 × 347,919.30
  4. Step 4: Simplify right side
    416,725.97x = 216,861,150,942.26
  5. Step 5: Solve for x
    x = 216,861,150,942.26/416,725.97
  6. Step 6: Final answer
    x = 520,392.70

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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.