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Finding the Fourth Proportional to 611,815.11, 844,069.30 and 451,052.38

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Solution

The fourth proportional to 611,815.11, 844,069.30 and 451,052.38 is: 622,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,815.11 : 844,069.30 = 451,052.38 : x
  2. Step 2: Convert to fraction form
    611,815.11/844,069.30 = 451,052.38/x
  3. Step 3: Cross multiply
    611,815.11x = 844,069.30 × 451,052.38
  4. Step 4: Simplify right side
    611,815.11x = 380,719,466,649.93
  5. Step 5: Solve for x
    x = 380,719,466,649.93/611,815.11
  6. Step 6: Final answer
    x = 622,278.63

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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.