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Finding the Fourth Proportional to 763,297.16, 1,145,375.86 and 703,067.18

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Solution

The fourth proportional to 763,297.16, 1,145,375.86 and 703,067.18 is: 1,054,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,297.16 : 1,145,375.86 = 703,067.18 : x
  2. Step 2: Convert to fraction form
    763,297.16/1,145,375.86 = 703,067.18/x
  3. Step 3: Cross multiply
    763,297.16x = 1,145,375.86 × 703,067.18
  4. Step 4: Simplify right side
    763,297.16x = 805,276,175,930.28
  5. Step 5: Solve for x
    x = 805,276,175,930.28/763,297.16
  6. Step 6: Final answer
    x = 1,054,996.95

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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.