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Finding the Fourth Proportional to 844,772.66, 1,270,754.88 and 765,763.40

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Solution

The fourth proportional to 844,772.66, 1,270,754.88 and 765,763.40 is: 1,151,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    844,772.66 : 1,270,754.88 = 765,763.40 : x
  2. Step 2: Convert to fraction form
    844,772.66/1,270,754.88 = 765,763.40/x
  3. Step 3: Cross multiply
    844,772.66x = 1,270,754.88 × 765,763.40
  4. Step 4: Simplify right side
    844,772.66x = 973,097,571,121.62
  5. Step 5: Solve for x
    x = 973,097,571,121.62/844,772.66
  6. Step 6: Final answer
    x = 1,151,904.68

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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.