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Finding the Fourth Proportional to 922,794.30, 1,384,191.45 and 904,131.90

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Solution

The fourth proportional to 922,794.30, 1,384,191.45 and 904,131.90 is: 1,356,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,794.30 : 1,384,191.45 = 904,131.90 : x
  2. Step 2: Convert to fraction form
    922,794.30/1,384,191.45 = 904,131.90/x
  3. Step 3: Cross multiply
    922,794.30x = 1,384,191.45 × 904,131.90
  4. Step 4: Simplify right side
    922,794.30x = 1,251,491,645,652.25
  5. Step 5: Solve for x
    x = 1,251,491,645,652.25/922,794.30
  6. Step 6: Final answer
    x = 1,356,197.85

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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.