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Finding the Fourth Proportional to 1,093,815.60, 1,508,859 and 641,019.12

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Solution

The fourth proportional to 1,093,815.60, 1,508,859 and 641,019.12 is: 884,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,815.60 : 1,508,859 = 641,019.12 : x
  2. Step 2: Convert to fraction form
    1,093,815.60/1,508,859 = 641,019.12/x
  3. Step 3: Cross multiply
    1,093,815.60x = 1,508,859 × 641,019.12
  4. Step 4: Simplify right side
    1,093,815.60x = 967,207,468,384.08
  5. Step 5: Solve for x
    x = 967,207,468,384.08/1,093,815.60
  6. Step 6: Final answer
    x = 884,250.94

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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.