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Finding the Fourth Proportional to 1,337,244.90, 1,844,949.15 and 763,879.11

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Solution

The fourth proportional to 1,337,244.90, 1,844,949.15 and 763,879.11 is: 1,053,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,244.90 : 1,844,949.15 = 763,879.11 : x
  2. Step 2: Convert to fraction form
    1,337,244.90/1,844,949.15 = 763,879.11/x
  3. Step 3: Cross multiply
    1,337,244.90x = 1,844,949.15 × 763,879.11
  4. Step 4: Simplify right side
    1,337,244.90x = 1,409,318,114,697.26
  5. Step 5: Solve for x
    x = 1,409,318,114,697.26/1,337,244.90
  6. Step 6: Final answer
    x = 1,053,896.80

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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.