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Finding the Fourth Proportional to 2,946,408, 4,419,599.40 and 816,486

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Solution

The fourth proportional to 2,946,408, 4,419,599.40 and 816,486 is: 1,224,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946,408 : 4,419,599.40 = 816,486 : x
  2. Step 2: Convert to fraction form
    2,946,408/4,419,599.40 = 816,486/x
  3. Step 3: Cross multiply
    2,946,408x = 4,419,599.40 × 816,486
  4. Step 4: Simplify right side
    2,946,408x = 3,608,541,035,708.40
  5. Step 5: Solve for x
    x = 3,608,541,035,708.40/2,946,408
  6. Step 6: Final answer
    x = 1,224,725.51

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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.