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Finding the Fourth Proportional to 416,395.20, 624,176.16 and 191,917.92

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Solution

The fourth proportional to 416,395.20, 624,176.16 and 191,917.92 is: 287,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,395.20 : 624,176.16 = 191,917.92 : x
  2. Step 2: Convert to fraction form
    416,395.20/624,176.16 = 191,917.92/x
  3. Step 3: Cross multiply
    416,395.20x = 624,176.16 × 191,917.92
  4. Step 4: Simplify right side
    416,395.20x = 119,790,590,340.79
  5. Step 5: Solve for x
    x = 119,790,590,340.79/416,395.20
  6. Step 6: Final answer
    x = 287,684.85

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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.