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Finding the Fourth Proportional to 922,499.10, 1,384,007.85 and 449,199.90

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Solution

The fourth proportional to 922,499.10, 1,384,007.85 and 449,199.90 is: 673,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,499.10 : 1,384,007.85 = 449,199.90 : x
  2. Step 2: Convert to fraction form
    922,499.10/1,384,007.85 = 449,199.90/x
  3. Step 3: Cross multiply
    922,499.10x = 1,384,007.85 × 449,199.90
  4. Step 4: Simplify right side
    922,499.10x = 621,696,187,819.22
  5. Step 5: Solve for x
    x = 621,696,187,819.22/922,499.10
  6. Step 6: Final answer
    x = 673,926.06

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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.