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Finding the Fourth Proportional to 1,295,961.22, 1,943,869.17 and 397,400.49

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Solution

The fourth proportional to 1,295,961.22, 1,943,869.17 and 397,400.49 is: 596,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,961.22 : 1,943,869.17 = 397,400.49 : x
  2. Step 2: Convert to fraction form
    1,295,961.22/1,943,869.17 = 397,400.49/x
  3. Step 3: Cross multiply
    1,295,961.22x = 1,943,869.17 × 397,400.49
  4. Step 4: Simplify right side
    1,295,961.22x = 772,494,560,653.89
  5. Step 5: Solve for x
    x = 772,494,560,653.89/1,295,961.22
  6. Step 6: Final answer
    x = 596,078.45

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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.