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Finding the Fourth Proportional to 627,150.09, 865,826.10 and 412,912.92

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Solution

The fourth proportional to 627,150.09, 865,826.10 and 412,912.92 is: 570,056.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,150.09 : 865,826.10 = 412,912.92 : x
  2. Step 2: Convert to fraction form
    627,150.09/865,826.10 = 412,912.92/x
  3. Step 3: Cross multiply
    627,150.09x = 865,826.10 × 412,912.92
  4. Step 4: Simplify right side
    627,150.09x = 357,510,783,163.21
  5. Step 5: Solve for x
    x = 357,510,783,163.21/627,150.09
  6. Step 6: Final answer
    x = 570,056.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.