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Finding the Fourth Proportional to 627,266.40, 865,622.97 and 340,788.84

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Solution

The fourth proportional to 627,266.40, 865,622.97 and 340,788.84 is: 470,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,266.40 : 865,622.97 = 340,788.84 : x
  2. Step 2: Convert to fraction form
    627,266.40/865,622.97 = 340,788.84/x
  3. Step 3: Cross multiply
    627,266.40x = 865,622.97 × 340,788.84
  4. Step 4: Simplify right side
    627,266.40x = 294,994,647,823.66
  5. Step 5: Solve for x
    x = 294,994,647,823.66/627,266.40
  6. Step 6: Final answer
    x = 470,286.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.