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Finding the Fourth Proportional to 888,927, 1,226,709.90 and 481,019.92

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Solution

The fourth proportional to 888,927, 1,226,709.90 and 481,019.92 is: 663,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,927 : 1,226,709.90 = 481,019.92 : x
  2. Step 2: Convert to fraction form
    888,927/1,226,709.90 = 481,019.92/x
  3. Step 3: Cross multiply
    888,927x = 1,226,709.90 × 481,019.92
  4. Step 4: Simplify right side
    888,927x = 590,071,897,961.21
  5. Step 5: Solve for x
    x = 590,071,897,961.21/888,927
  6. Step 6: Final answer
    x = 663,802.42

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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.