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Finding the Fourth Proportional to 416,134.40, 622,646.40 and 276,166.40

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Solution

The fourth proportional to 416,134.40, 622,646.40 and 276,166.40 is: 413,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,134.40 : 622,646.40 = 276,166.40 : x
  2. Step 2: Convert to fraction form
    416,134.40/622,646.40 = 276,166.40/x
  3. Step 3: Cross multiply
    416,134.40x = 622,646.40 × 276,166.40
  4. Step 4: Simplify right side
    416,134.40x = 171,954,014,760.96
  5. Step 5: Solve for x
    x = 171,954,014,760.96/416,134.40
  6. Step 6: Final answer
    x = 413,217.50

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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.