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Finding the Fourth Proportional to 1,410,046.93, 1,945,867.20 and 806,434.93

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Solution

The fourth proportional to 1,410,046.93, 1,945,867.20 and 806,434.93 is: 1,112,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,046.93 : 1,945,867.20 = 806,434.93 : x
  2. Step 2: Convert to fraction form
    1,410,046.93/1,945,867.20 = 806,434.93/x
  3. Step 3: Cross multiply
    1,410,046.93x = 1,945,867.20 × 806,434.93
  4. Step 4: Simplify right side
    1,410,046.93x = 1,569,215,279,221.30
  5. Step 5: Solve for x
    x = 1,569,215,279,221.30/1,410,046.93
  6. Step 6: Final answer
    x = 1,112,881.60

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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.