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Finding the Fourth Proportional to 1,220,874, 1,831,573.44 and 411,338.88

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Solution

The fourth proportional to 1,220,874, 1,831,573.44 and 411,338.88 is: 617,096.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,874 : 1,831,573.44 = 411,338.88 : x
  2. Step 2: Convert to fraction form
    1,220,874/1,831,573.44 = 411,338.88/x
  3. Step 3: Cross multiply
    1,220,874x = 1,831,573.44 × 411,338.88
  4. Step 4: Simplify right side
    1,220,874x = 753,397,367,447.35
  5. Step 5: Solve for x
    x = 753,397,367,447.35/1,220,874
  6. Step 6: Final answer
    x = 617,096.74

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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.