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Finding the Fourth Proportional to 1,229,940.04, 1,844,965.32 and 376,949.20

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Solution

The fourth proportional to 1,229,940.04, 1,844,965.32 and 376,949.20 is: 565,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,940.04 : 1,844,965.32 = 376,949.20 : x
  2. Step 2: Convert to fraction form
    1,229,940.04/1,844,965.32 = 376,949.20/x
  3. Step 3: Cross multiply
    1,229,940.04x = 1,844,965.32 × 376,949.20
  4. Step 4: Simplify right side
    1,229,940.04x = 695,458,201,401.74
  5. Step 5: Solve for x
    x = 695,458,201,401.74/1,229,940.04
  6. Step 6: Final answer
    x = 565,440.74

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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.