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Finding the Fourth Proportional to 1,865,191.77, 2,797,786.80 and 839,322.95

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Solution

The fourth proportional to 1,865,191.77, 2,797,786.80 and 839,322.95 is: 1,258,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,191.77 : 2,797,786.80 = 839,322.95 : x
  2. Step 2: Convert to fraction form
    1,865,191.77/2,797,786.80 = 839,322.95/x
  3. Step 3: Cross multiply
    1,865,191.77x = 2,797,786.80 × 839,322.95
  4. Step 4: Simplify right side
    1,865,191.77x = 2,348,246,656,458.13
  5. Step 5: Solve for x
    x = 2,348,246,656,458.13/1,865,191.77
  6. Step 6: Final answer
    x = 1,258,984.03

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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.