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Finding the Fourth Proportional to 1,555,329, 2,146,354.05 and 839,937

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Solution

The fourth proportional to 1,555,329, 2,146,354.05 and 839,937 is: 1,159,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,329 : 2,146,354.05 = 839,937 : x
  2. Step 2: Convert to fraction form
    1,555,329/2,146,354.05 = 839,937/x
  3. Step 3: Cross multiply
    1,555,329x = 2,146,354.05 × 839,937
  4. Step 4: Simplify right side
    1,555,329x = 1,802,802,181,694.85
  5. Step 5: Solve for x
    x = 1,802,802,181,694.85/1,555,329
  6. Step 6: Final answer
    x = 1,159,113.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.