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Finding the Fourth Proportional to 1,409,252.88, 1,944,743.46 and 857,768.88

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Solution

The fourth proportional to 1,409,252.88, 1,944,743.46 and 857,768.88 is: 1,183,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,252.88 : 1,944,743.46 = 857,768.88 : x
  2. Step 2: Convert to fraction form
    1,409,252.88/1,944,743.46 = 857,768.88/x
  3. Step 3: Cross multiply
    1,409,252.88x = 1,944,743.46 × 857,768.88
  4. Step 4: Simplify right side
    1,409,252.88x = 1,668,140,419,571.52
  5. Step 5: Solve for x
    x = 1,668,140,419,571.52/1,409,252.88
  6. Step 6: Final answer
    x = 1,183,705.52

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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.