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Finding the Fourth Proportional to 1,054,906.80, 1,581,323.40 and 942,932.40

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Solution

The fourth proportional to 1,054,906.80, 1,581,323.40 and 942,932.40 is: 1,413,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,906.80 : 1,581,323.40 = 942,932.40 : x
  2. Step 2: Convert to fraction form
    1,054,906.80/1,581,323.40 = 942,932.40/x
  3. Step 3: Cross multiply
    1,054,906.80x = 1,581,323.40 × 942,932.40
  4. Step 4: Simplify right side
    1,054,906.80x = 1,491,081,068,738.16
  5. Step 5: Solve for x
    x = 1,491,081,068,738.16/1,054,906.80
  6. Step 6: Final answer
    x = 1,413,471.85

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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.