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Finding the Fourth Proportional to 922,093.40, 1,383,140.10 and 839,424.80

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Solution

The fourth proportional to 922,093.40, 1,383,140.10 and 839,424.80 is: 1,259,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,093.40 : 1,383,140.10 = 839,424.80 : x
  2. Step 2: Convert to fraction form
    922,093.40/1,383,140.10 = 839,424.80/x
  3. Step 3: Cross multiply
    922,093.40x = 1,383,140.10 × 839,424.80
  4. Step 4: Simplify right side
    922,093.40x = 1,161,042,101,814.48
  5. Step 5: Solve for x
    x = 1,161,042,101,814.48/922,093.40
  6. Step 6: Final answer
    x = 1,259,137.20

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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.