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Finding the Fourth Proportional to 7,243,559.60, 10,866,651.60 and 3,640,258.40

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Solution

The fourth proportional to 7,243,559.60, 10,866,651.60 and 3,640,258.40 is: 5,461,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,559.60 : 10,866,651.60 = 3,640,258.40 : x
  2. Step 2: Convert to fraction form
    7,243,559.60/10,866,651.60 = 3,640,258.40/x
  3. Step 3: Cross multiply
    7,243,559.60x = 10,866,651.60 × 3,640,258.40
  4. Step 4: Simplify right side
    7,243,559.60x = 39,557,419,766,773.44
  5. Step 5: Solve for x
    x = 39,557,419,766,773.44/7,243,559.60
  6. Step 6: Final answer
    x = 5,461,047.05

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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.