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Finding the Fourth Proportional to 1,831,796.40, 2,747,694.60 and 836,468.40

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Solution

The fourth proportional to 1,831,796.40, 2,747,694.60 and 836,468.40 is: 1,254,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831,796.40 : 2,747,694.60 = 836,468.40 : x
  2. Step 2: Convert to fraction form
    1,831,796.40/2,747,694.60 = 836,468.40/x
  3. Step 3: Cross multiply
    1,831,796.40x = 2,747,694.60 × 836,468.40
  4. Step 4: Simplify right side
    1,831,796.40x = 2,298,359,705,750.64
  5. Step 5: Solve for x
    x = 2,298,359,705,750.64/1,831,796.40
  6. Step 6: Final answer
    x = 1,254,702.60

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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.