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Finding the Fourth Proportional to 1,229,658.60, 1,844,487.90 and 1,182,419.40

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Solution

The fourth proportional to 1,229,658.60, 1,844,487.90 and 1,182,419.40 is: 1,773,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,658.60 : 1,844,487.90 = 1,182,419.40 : x
  2. Step 2: Convert to fraction form
    1,229,658.60/1,844,487.90 = 1,182,419.40/x
  3. Step 3: Cross multiply
    1,229,658.60x = 1,844,487.90 × 1,182,419.40
  4. Step 4: Simplify right side
    1,229,658.60x = 2,180,958,276,025.26
  5. Step 5: Solve for x
    x = 2,180,958,276,025.26/1,229,658.60
  6. Step 6: Final answer
    x = 1,773,629.10

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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.