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Finding the Fourth Proportional to 1,336,922.84, 1,844,956.56 and 763,961.64

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Solution

The fourth proportional to 1,336,922.84, 1,844,956.56 and 763,961.64 is: 1,054,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,922.84 : 1,844,956.56 = 763,961.64 : x
  2. Step 2: Convert to fraction form
    1,336,922.84/1,844,956.56 = 763,961.64/x
  3. Step 3: Cross multiply
    1,336,922.84x = 1,844,956.56 × 763,961.64
  4. Step 4: Simplify right side
    1,336,922.84x = 1,409,476,039,306.36
  5. Step 5: Solve for x
    x = 1,409,476,039,306.36/1,336,922.84
  6. Step 6: Final answer
    x = 1,054,268.80

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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.