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Finding the Fourth Proportional to 1,195,728, 1,789,161.60 and 958,350.72

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Solution

The fourth proportional to 1,195,728, 1,789,161.60 and 958,350.72 is: 1,433,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,728 : 1,789,161.60 = 958,350.72 : x
  2. Step 2: Convert to fraction form
    1,195,728/1,789,161.60 = 958,350.72/x
  3. Step 3: Cross multiply
    1,195,728x = 1,789,161.60 × 958,350.72
  4. Step 4: Simplify right side
    1,195,728x = 1,714,644,307,556.35
  5. Step 5: Solve for x
    x = 1,714,644,307,556.35/1,195,728
  6. Step 6: Final answer
    x = 1,433,975.21

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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.