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Finding the Fourth Proportional to 1,749,705.68, 2,414,813.64 and 985,941.20

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Solution

The fourth proportional to 1,749,705.68, 2,414,813.64 and 985,941.20 is: 1,360,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749,705.68 : 2,414,813.64 = 985,941.20 : x
  2. Step 2: Convert to fraction form
    1,749,705.68/2,414,813.64 = 985,941.20/x
  3. Step 3: Cross multiply
    1,749,705.68x = 2,414,813.64 × 985,941.20
  4. Step 4: Simplify right side
    1,749,705.68x = 2,380,864,257,997.97
  5. Step 5: Solve for x
    x = 2,380,864,257,997.97/1,749,705.68
  6. Step 6: Final answer
    x = 1,360,722.71

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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.